| Table 3. Estimated stock numbers at age. | |||||||
| Year Age | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 2002 | 218010 | 54181 | 39387 | 15921 | 3350 | 446 | 447 |
| 2003 | 151766 | 78284 | 22170 | 13782 | 5280 | 1408 | 370 |
| 2004 | 239639 | 52627 | 29431 | 9465 | 5109 | 2285 | 858 |
| 2005 | 204414 | 85431 | 23729 | 11619 | 3930 | 2308 | 1479 |
| 2006 | 196777 | 60746 | 37612 | 12708 | 4938 | 2043 | 1989 |
| 2007 | 221293 | 54785 | 26102 | 15221 | 5430 | 2111 | 1769 |
| 2008 | 215913 | 57572 | 25019 | 11059 | 5649 | 2335 | 1994 |
| 2009 | 261048 | 50431 | 24249 | 10644 | 4206 | 2261 | 1968 |
| 2010 | 401779 | 64806 | 21502 | 9903 | 4426 | 1929 | 2243 |
| 2011 | 402377 | 98620 | 29615 | 9313 | 4083 | 2331 | 2602 |
| 2012 | 292271 | 111372 | 40810 | 13570 | 4344 | 2091 | 2718 |
| 2013 | 336875 | 89643 | 48957 | 20014 | 7025 | 2548 | 2986 |
| 2014 | 392009 | 113633 | 40231 | 24608 | 10749 | 4143 | 3483 |
| 2015 | 371087 | 121316 | 51650 | 22292 | 14077 | 6176 | 5055 |
| 2016 | 484672 | 117527 | 59586 | 27751 | 12037 | 7571 | 6699 |
| 2017 | 784454 | 138912 | 52175 | 30662 | 15113 | 6533 | 7890 |
| 2018 | 565541 | 212025 | 66539 | 26046 | 16876 | 8442 | 8033 |
| 2019 | 531855 | 154107 | 92513 | 35034 | 12212 | 9063 | 8994 |
| 2020 | 2024538 | 162907 | 70206 | 46452 | 17429 | 6153 | 9504 |
| 2021 | 2918848 | 516884 | 84645 | 35763 | 23120 | 9358 | 9343 |
| 2022 | 4561656 | 695033 | 222975 | 52297 | 19543 | 12167 | 11009 |
| 2023 | 5873463 | 956037 | 292939 | 119981 | 31390 | 11283 | 13963 |
| 2024 | 7937329 | 1094873 | 354125 | 154804 | 66371 | 19610 | 15346 |
| 2025 | 8796107 | 1277598 | 404464 | 175857 | 84656 | 36577 | 21865 |
| 2026 | 7870753 | 1386130 | 453377 | 197926 | 93458 | 46539 | 34631 |