- Avg. viewers
- 450
- Followers
- 126.9K
Category: Heroes of Might & Magic: Olden Era
szczurkowski Twitch stats
Twitch PartnerPrimary language: PL
Gracz starszej daty, na imię mu Jarek - rocznik 1988. Mieszkaniec pięknej Gdyni. Fascynat chyba wszystkich rodzajów gier. Były gracz i komentator Wolfenstein: Enemy Territory. Partner między innymi Sea of Thieves, Ubisoft i Deep Silver. Z wykształcenia archeolog, z zamiłowania muzyk i kibic sportowy
Tracked since . Profile details synced .
- Tracked streams
- 34
- Highest tracked viewers
- 1,012
Last 30 days
Every figure below is measured from broadcasts we observed. Percentage changes appear only where the previous period had enough data to compare against.
Average viewers
66.8
Down −24.0%vs previous 30 days
Across 1 tracked stream
Peak viewers
131
Followers
7,187
Last counted 3 days ago
Followers gained (30 days)
+6
Up +0.1%growth on the starting count
Hours watched
1,171
Down −76.9%vs previous 30 days
Hours streamed
18
On 6 days in this period
Highest peak we have tracked: 1,012 viewers on August 15, 2026.
All-time figures cover only what we have observed since we began tracking this channel on . They are not the channel’s lifetime totals on Twitch.
Viewership over time
Daily figures for the last all time. A day we never observed is drawn as a gap, never as a zero.
Average viewers per day
szczurkowski, last all time.
View as table
| Date | Avg viewers | Peak viewers | Hours watched | Hours streamed |
|---|---|---|---|---|
| Nov 14, 2026 | — | — | — | — |
| Nov 13, 2026 | — | — | — | — |
| Nov 12, 2026 | — | — | — | — |
| Nov 11, 2026 | 69.1 | 87 | 226 | 3.27 |
| Nov 10, 2026 | 92.2 | 106 | 75 | 0.82 |
| Nov 9, 2026 | — | — | — | — |
| Nov 8, 2026 | — | — | — | — |
| Nov 7, 2026 | — | — | — | — |
| Nov 6, 2026 | — | — | — | — |
| Nov 5, 2026 | — | — | — | — |
| Nov 4, 2026 | 69.4 | 131 | 364 | 5.25 |
| Nov 3, 2026 | — | — | — | — |
| Nov 2, 2026 | — | — | — | — |
| Nov 1, 2026 | — | — | — | — |
| Oct 31, 2026 | — | — | — | — |
| Oct 30, 2026 | — | — | — | — |
| Oct 29, 2026 | 54.8 | 63 | 68 | 1.25 |
| Oct 28, 2026 | — | — | — | — |
| Oct 27, 2026 | 61.8 | 75 | 198 | 3.2 |
| Oct 26, 2026 | — | — | — | — |
| Oct 25, 2026 | — | — | — | — |
| Oct 24, 2026 | — | — | — | — |
| Oct 23, 2026 | — | — | — | — |
| Oct 22, 2026 | — | — | — | — |
| Oct 21, 2026 | — | — | — | — |
| Oct 20, 2026 | 64.2 | 131 | 240 | 3.73 |
| Oct 19, 2026 | — | — | — | — |
| Oct 18, 2026 | — | — | — | — |
| Oct 17, 2026 | — | — | — | — |
| Oct 16, 2026 | — | — | — | — |
| Oct 15, 2026 | — | — | — | — |
| Oct 14, 2026 | — | — | — | — |
| Oct 13, 2026 | 70.4 | 93 | 279 | 3.97 |
| Oct 12, 2026 | 88.4 | 93 | 52 | 0.58 |
| Oct 11, 2026 | — | — | — | — |
| Oct 10, 2026 | — | — | — | — |
| Oct 9, 2026 | — | — | — | — |
| Oct 8, 2026 | 73.3 | 88 | 281 | 3.84 |
| Oct 7, 2026 | — | — | — | — |
| Oct 6, 2026 | 62.1 | 115 | 149 | 2.4 |
| Oct 5, 2026 | — | — | — | — |
| Oct 4, 2026 | — | — | — | — |
| Oct 3, 2026 | — | — | — | — |
| Oct 2, 2026 | 70.0 | 124 | 216 | 3.09 |
| Oct 1, 2026 | 66.3 | 83 | 353 | 5.33 |
| Sep 30, 2026 | 68.2 | 97 | 145 | 2.13 |
| Sep 29, 2026 | 74.8 | 131 | 316 | 4.23 |
| Sep 28, 2026 | — | — | — | — |
| Sep 27, 2026 | — | — | — | — |
| Sep 26, 2026 | — | — | — | — |
| Sep 25, 2026 | 61.2 | 77 | 226 | 3.7 |
| Sep 24, 2026 | 77.6 | 102 | 433 | 5.58 |
| Sep 23, 2026 | — | — | — | — |
| Sep 22, 2026 | 135 | 204 | 605 | 4.47 |
| Sep 21, 2026 | 118 | 140 | 286 | 2.42 |
| Sep 20, 2026 | — | — | — | — |
| Sep 19, 2026 | — | — | — | — |
| Sep 18, 2026 | — | — | — | — |
| Sep 17, 2026 | 75.8 | 131 | 304 | 4 |
| Sep 16, 2026 | 144 | 181 | 863 | 6 |
| Sep 15, 2026 | 106 | 151 | 460 | 4.33 |
| Sep 14, 2026 | 64.0 | 79 | 104 | 1.63 |
| Sep 13, 2026 | — | — | — | — |
| Sep 12, 2026 | — | — | — | — |
| Sep 11, 2026 | 75.1 | 97 | 376 | 5 |
| Sep 10, 2026 | 55.3 | 72 | 180 | 3.25 |
| Sep 9, 2026 | 50.8 | 59 | 45 | 0.88 |
| Sep 8, 2026 | 68.3 | 76 | 245 | 3.58 |
| Sep 7, 2026 | — | — | — | — |
| Sep 6, 2026 | — | — | — | — |
| Sep 5, 2026 | — | — | — | — |
| Sep 4, 2026 | 79.5 | 109 | 182 | 2.28 |
| Sep 3, 2026 | — | — | — | — |
| Sep 2, 2026 | 64.9 | 79 | 167 | 2.57 |
| Sep 1, 2026 | 79.1 | 142 | 330 | 4.18 |
| Aug 31, 2026 | — | — | — | — |
| Aug 30, 2026 | — | — | — | — |
| Aug 29, 2026 | — | — | — | — |
| Aug 28, 2026 | — | — | — | — |
| Aug 27, 2026 | 63.4 | 77 | 257 | 4.05 |
| Aug 26, 2026 | 75.5 | 100 | 495 | 6.55 |
| Aug 25, 2026 | 88.8 | 103 | 482 | 5.43 |
| Aug 24, 2026 | 95.1 | 102 | 103 | 1.08 |
| Aug 23, 2026 | — | — | — | — |
| Aug 22, 2026 | 102 | 119 | 611 | 5.98 |
| Aug 21, 2026 | 121 | 150 | 824 | 6.78 |
| Aug 20, 2026 | 116 | 145 | 77 | 0.67 |
| Aug 19, 2026 | 110 | 135 | 611 | 5.57 |
| Aug 18, 2026 | 97.5 | 109 | 137 | 1.41 |
| Aug 17, 2026 | — | — | — | — |
| Aug 16, 2026 | 308 | 429 | 611 | 1.98 |
| Aug 15, 2026 | 778 | 1,012 | 4,539 | 5.83 |
| Aug 14, 2026 | 54.0 | 59 | 36 | 0.66 |
Follower growth
Total followers recorded each day over the last all time.
Followers
The axis starts at zero, so a week of growth on a large channel looks small — which is the honest reading.
View as table
| Date | Followers | Followers gained |
|---|---|---|
| Nov 14, 2026 | — | — |
| Nov 13, 2026 | — | — |
| Nov 12, 2026 | — | — |
| Nov 11, 2026 | — | — |
| Nov 10, 2026 | 7,187 | +12 |
| Nov 9, 2026 | — | — |
| Nov 8, 2026 | — | — |
| Nov 7, 2026 | — | — |
| Nov 6, 2026 | — | — |
| Nov 5, 2026 | — | — |
| Nov 4, 2026 | 7,175 | −2 |
| Nov 3, 2026 | — | — |
| Nov 2, 2026 | — | — |
| Nov 1, 2026 | — | — |
| Oct 31, 2026 | — | — |
| Oct 30, 2026 | — | — |
| Oct 29, 2026 | 7,177 | +2 |
| Oct 28, 2026 | — | — |
| Oct 27, 2026 | 7,175 | −2 |
| Oct 26, 2026 | — | — |
| Oct 25, 2026 | — | — |
| Oct 24, 2026 | — | — |
| Oct 23, 2026 | — | — |
| Oct 22, 2026 | — | — |
| Oct 21, 2026 | — | — |
| Oct 20, 2026 | 7,177 | −4 |
| Oct 19, 2026 | — | — |
| Oct 18, 2026 | — | — |
| Oct 17, 2026 | — | — |
| Oct 16, 2026 | — | — |
| Oct 15, 2026 | — | — |
| Oct 14, 2026 | — | — |
| Oct 13, 2026 | — | — |
| Oct 12, 2026 | 7,181 | −3 |
| Oct 11, 2026 | — | — |
| Oct 10, 2026 | — | — |
| Oct 9, 2026 | — | — |
| Oct 8, 2026 | 7,184 | 0 |
| Oct 7, 2026 | — | — |
| Oct 6, 2026 | 7,184 | −3 |
| Oct 5, 2026 | — | — |
| Oct 4, 2026 | — | — |
| Oct 3, 2026 | — | — |
| Oct 2, 2026 | 7,187 | +1 |
| Oct 1, 2026 | 7,186 | +1 |
| Sep 30, 2026 | 7,185 | +1 |
| Sep 29, 2026 | 7,184 | −1 |
| Sep 28, 2026 | — | — |
| Sep 27, 2026 | — | — |
| Sep 26, 2026 | — | — |
| Sep 25, 2026 | 7,185 | −1 |
| Sep 24, 2026 | 7,186 | −2 |
| Sep 23, 2026 | — | — |
| Sep 22, 2026 | 7,188 | +9 |
| Sep 21, 2026 | 7,179 | +12 |
| Sep 20, 2026 | — | — |
| Sep 19, 2026 | — | — |
| Sep 18, 2026 | — | — |
| Sep 17, 2026 | 7,167 | +10 |
| Sep 16, 2026 | 7,157 | +3 |
| Sep 15, 2026 | 7,154 | 0 |
| Sep 14, 2026 | 7,154 | −1 |
| Sep 13, 2026 | — | — |
| Sep 12, 2026 | — | — |
| Sep 11, 2026 | 7,155 | +6 |
| Sep 10, 2026 | 7,149 | +4 |
| Sep 9, 2026 | 7,145 | +2 |
| Sep 8, 2026 | 7,143 | −2 |
| Sep 7, 2026 | — | — |
| Sep 6, 2026 | — | — |
| Sep 5, 2026 | — | — |
| Sep 4, 2026 | 7,145 | +6 |
| Sep 3, 2026 | — | — |
| Sep 2, 2026 | — | — |
| Sep 1, 2026 | 7,136 | −2 |
| Aug 31, 2026 | — | — |
| Aug 30, 2026 | — | — |
| Aug 29, 2026 | — | — |
| Aug 28, 2026 | — | — |
| Aug 27, 2026 | 7,138 | +2 |
| Aug 26, 2026 | 7,136 | +4 |
| Aug 25, 2026 | 7,132 | +3 |
| Aug 24, 2026 | 7,129 | +1 |
| Aug 23, 2026 | — | — |
| Aug 22, 2026 | 7,128 | +5 |
| Aug 21, 2026 | 7,123 | −1 |
| Aug 20, 2026 | 7,124 | −1 |
| Aug 19, 2026 | 7,125 | +5 |
| Aug 18, 2026 | 7,120 | 0 |
| Aug 17, 2026 | — | — |
| Aug 16, 2026 | 7,121 | +25 |
| Aug 15, 2026 | 7,096 | +1 |
| Aug 14, 2026 | 7,095 | — |
Performance — last all time
The same numbers the charts draw, as a table.
| Metric | Last All time |
|---|---|
| Streams tracked | 21 |
| Days with a broadcast | 41 |
| Hours streamedObserved airtime; sampling gaps are excluded, not estimated. | 143 |
| Average stream length | 10h 19m |
| Average viewersTime-weighted across every observed minute. | 116 |
| Median viewersHalf of tracked streams did better than this, half worse. | 73.0 |
| Peak viewers | 1,012 |
| Hours watchedEstimated viewer-hours, derived from sampling. | 16.6K |
| Followers gained | +92 |
| Data confidenceHow completely we sampled the broadcasts in this period. | 43% |
All-time figures cover only what we have observed since we began tracking this channel on August 14, 2026 — they are not the channel's lifetime totals on Twitch.
Recent streams
The 10 most recent of 67 tracked broadcasts.
| Stream | Category | Duration | Avg viewers | Peak | Hours watched |
|---|---|---|---|---|---|
| [Sea of Thieves] 🎁 DROPS: ON 🎁 / [PL/ENG] / 🔥 "Gilded Phoenix Ship Crest" GIVEAWAY 🔥 / 🏴☠️ ⚓ #SeaOfThievesPartner ⚓ 🏴☠️Partial data | Sea of Thieves | 7h 36m | 73.9 | 106 | 562 |
| [Anno 117: Pax Romana] 🎁 DROPS: ON 🎁 / [PL/ENG] / Ogrywamy 🔥 PRZEDPREMIEROWO 🔥 nowe DLC / Kod twórcy: SZCZURKOWSKI / #ubisoftpartner #adPartial data | Anno 117: Pax Romana | 12h 6m | 69.4 | 131 | 840 |
| [For Honor] 🎁 DROPS: ON 🎁 / [PL/ENG] / Kod twórcy: SZCZURKOWSKI / #ubisoftpartner #ad / Sprawdź !instant, zapraszam też na !socialPartial data | For Honor | 11h 7m | 54.8 | 63 | 609 |
| [House Flipper Remastered Collection] [PL/ENG] / Chillujemy - jak tam po PGA? 🥰 / Kupuj gry najtaniej na !instant, zapraszam też na !socialPartial data | House Flipper Remastered Collection | 10h 45m | 61.8 | 75 | 664 |
| [THE FINALS] Dalsze łapanie osiągnięć 💪 😎 🔥 / Kupuj gry najtaniej na !instant, zapraszam też na !socialPartial data | THE FINALS | 10h 42m | 64.2 | 131 | 687 |
| [Graveyard Keeper II] [PL/ENG] / Dalsze łapanie osiągnięć 💪 😎 🔥 / Kupuj gry najtaniej na !instant, zapraszam też na !socialPartial data | Graveyard Keeper II | 9h 22m | 72.8 | 93 | 682 |
| [The Crew: Motorfest] 🎁 DROPS: ON 🎁 / [PL/ENG] / Kod twórcy: SZCZURKOWSKI / #ubisoftpartner #ad / Kupuj gry najtaniej na !instantPartial data | The Crew: Motorfest | 10h 17m | 73.3 | 88 | 755 |
| [American Truck Simulator] [PL/ENG] / 🎶 Song Request: ON 🎶 / 💎 Road to 100% 💎 / Kupuj gry najtaniej na !instant, zapraszam na !socialPartial data | Albion Online | 10h 54m | 62.1 | 115 | 678 |
| [Albion Online] 🎁 DROPS: ON 🎁 [PL/ENG] / #sponsored - Dołącz do gildii "JaRock" 💪 😎 🔥 / Komendy !albion, !rewards / Sprawdź !instantPartial data | Albion Online | 10h 42m | 70.0 | 124 | 749 |
| [American Truck Simulator] [PL/ENG] / 🔥 DLC "Road Trip: Ford" i "South Dakota" 🔥 / Thanks @scssoftware for this gifts 🥰 / !instantPartial data | American Truck Simulator | 10h 37m | 66.3 | 83 | 704 |
Times are UTC. Average and peak viewers come from periodic sampling of the live broadcast, so they are close estimates rather than exact platform figures. A stream marked “partial data” had gaps in our sampling; the unobserved time is excluded from its averages rather than filled in.
Games and categories
Where szczurkowski's tracked airtime went in the last all time.
Share of tracked stream time
Hours broadcast per category over the last all time.
- Albion Online71 h · 20%
76.6 average viewers here
- Star Wars Zero Company38 h · 11%
70.4 average viewers here
- Sea of Thieves29 h · 8%
103 average viewers here
- Anno 117: Pax Romana23 h · 7%
96.9 average viewers here
- For Honor22 h · 6%
64.9 average viewers here
- Skull and Bones22 h · 6%
124 average viewers here
- Tom Clancy's The Division 221 h · 6%
61.1 average viewers here
- Other (10 categories)125 h · 36%
| Category | Hours streamed | Share | Streams | Avg viewers | Peak | Hours watched |
|---|---|---|---|---|---|---|
| Albion Online | 71 | 20% | 7 | 76.6 | 142 | 5,426 |
| Star Wars Zero Company | 38 | 11% | 4 | 70.4 | 119 | 2,680 |
| Sea of Thieves | 29 | 8% | 3 | 103 | 204 | 2,950 |
| Anno 117: Pax Romana | 23 | 7% | 2 | 96.9 | 150 | 2,250 |
| For Honor | 22 | 6% | 2 | 64.9 | 97 | 1,432 |
| Skull and Bones | 22 | 6% | 2 | 124 | 181 | 2,716 |
| Tom Clancy's The Division 2 | 21 | 6% | 2 | 61.1 | 97 | 1,307 |
| Graveyard Keeper II | 21 | 6% | 2 | 75.4 | 102 | 1,552 |
| House Flipper Remastered Collection | 20 | 6% | 2 | 63.6 | 100 | 1,300 |
| Heroes of Might & Magic: Olden Era | 19 | 5% | 2 | 321 | 1,012 | 6,104 |
| American Truck Simulator | 12 | 3% | 2 | 65.4 | 83 | 778 |
| THE FINALS | 11 | 3% | 1 | 64.2 | 131 | 687 |
| Rainbow Six Siege | 11 | 3% | 1 | 61.2 | 77 | 653 |
| Call of Duty: Modern Warfare 4 | 10 | 3% | 1 | 91.7 | 103 | 950 |
| The Crew: Motorfest | 10 | 3% | 1 | 73.3 | 88 | 755 |
| Battlefield 6 | 10 | 3% | 1 | 74.8 | 131 | 768 |
| Human: Fall Flat | 1.14 | 0.3% | 1 | 64.3 | 115 | 73 |
Covers every broadcast we have observed since we began tracking this channel on August 14, 2026 — not the channel's full history on Twitch.
Streaming patterns
When this channel has actually been live, by UTC weekday and hour. Observed history, not an announced schedule.
Observed broadcast hours
Observed broadcast history in UTC over the tracked period — not an announced schedule. Empty cells mean we never recorded a broadcast in that hour.
LessMore (up to 10 h)
| Day | 00:00 UTC | 01:00 UTC | 02:00 UTC | 03:00 UTC | 04:00 UTC | 05:00 UTC | 06:00 UTC | 07:00 UTC | 08:00 UTC | 09:00 UTC | 10:00 UTC | 11:00 UTC | 12:00 UTC | 13:00 UTC | 14:00 UTC | 15:00 UTC | 16:00 UTC | 17:00 UTC | 18:00 UTC | 19:00 UTC | 20:00 UTC | 21:00 UTC | 22:00 UTC | 23:00 UTC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunday | 1 hours | 1 hours | 0.01 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours |
| Monday | 1 hours | 1 hours | 1 hours | 0.4 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 9 hours | 10 hours | 10 hours | 10 hours | 10 hours | 10 hours |
| Tuesday | 10 hours | 10 hours | 10 hours | 9.75 hours | 7.38 hours | 2.54 hours | 0.63 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 6 hours | 8 hours | 8 hours | 8 hours | 8 hours | 8 hours |
| Wednesday | 8 hours | 8 hours | 8 hours | 6.68 hours | 5.65 hours | 3.82 hours | 1.07 hours | 1 hours | 0.1 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 7 hours | 8 hours | 8 hours | 8 hours | 8 hours | 8 hours |
| Thursday | 8 hours | 8 hours | 7.87 hours | 7 hours | 6.09 hours | 3.33 hours | 0.66 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 5 hours | 5 hours | 5 hours | 5 hours | 5 hours | 5 hours |
| Friday | 5 hours | 5 hours | 5 hours | 5 hours | 5 hours | 2.23 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours |
| Saturday | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours | 0.99 hours | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | no broadcast observed | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours | 1 hours |
Engagement measurements
How much chat this channel produces for its audience, and how steady its viewer count is. Both are observations, not judgements.
- Chat participation
- 6.4 per 1,000 viewers
- Viewer count steadiness
- 1.12
- Messages per chatter
- 1.3
Median for similar channels: 12.6
Median across measured channels: 1.77
Variation in the viewer count between readings, relative to what an audience of independent people would produce. Higher means more variation.
How much each participating account says. Very high values mean a few accounts are doing most of the talking.
Chat figures come from sampling the public chat of szczurkowski for short windows; they count accounts that sent a message, not people watching silently, and most of any audience watches silently. What these numbers do and do not mean.
Data-driven observations
What the tracked data shows
Generated from the figures on this page. No estimate is stated more precisely than the measurement supports, and nothing here claims a cause.
Neutral: Heroes of Might & Magic: Olden Era produced the highest average audience (321 viewers) among categories streamed for at least 5 hours in this period.
Positive: Gained 92 followers over the all time (+1.3%).
Neutral: The highest tracked peak was 1,012 viewers on August 15, 2026.
Neutral: Viewership varies considerably between streams, so the average is less representative of any single broadcast.
Neutral: Most tracked airtime falls on Tuesday, typically starting around 18:00 UTC.
Neutral: Streams in this period averaged 10h 19m across 21 tracked broadcasts.
Records and totals above are bounded by our own observations, which begin on August 14, 2026.
Similar streamers
Channels with overlapping categories and a comparable tracked audience.
- Avg. viewers
- 294
- Followers
- 7,966
Category: Skull and Bones
- Avg. viewers
- 874
- Followers
- 34.5K
Category: Tom Clancy's The Division 2
- Avg. viewers
- 764
- Followers
- 37.0K
Category: Tom Clancy's The Division 2
- Avg. viewers
- 492
- Followers
- 70.3K
Category: Anno 117: Pax Romana
- Avg. viewers
- 115
- Followers
- 11.6K
Category: Tom Clancy's The Division 2
- Avg. viewers
- 144
- Followers
- 16.9K
Category: Tom Clancy's The Division 2
- Avg. viewers
- 128
- Followers
- 2,988
Category: Tom Clancy's The Division 2
This profile has enough tracked history to be listed in search engines. How these numbers are calculated.