| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 1224 | 330 | 112 | 65 | 6 | 1 | 0 | 0 | 0 |
| 2001 | 1510 | 1002 | 269 | 67 | 18 | 3 | 1 | 0 | 0 |
| 2002 | 1315 | 1237 | 804 | 141 | 13 | 6 | 1 | 0 | 0 |
| 2003 | 1591 | 1077 | 953 | 384 | 23 | 4 | 3 | 1 | 0 |
| 2004 | 2170 | 1302 | 835 | 463 | 57 | 6 | 1 | 1 | 0 |
| 2005 | 4857 | 1777 | 929 | 365 | 59 | 12 | 2 | 0 | 0 |
| 2006 | 3368 | 3977 | 1177 | 406 | 55 | 15 | 4 | 0 | 0 |
| 2007 | 3357 | 2757 | 2730 | 579 | 97 | 21 | 7 | 2 | 0 |
| 2008 | 2318 | 2749 | 1943 | 1360 | 124 | 31 | 9 | 3 | 1 |
| 2009 | 3451 | 1898 | 2113 | 1064 | 304 | 36 | 14 | 5 | 2 |
| 2010 | 4098 | 2825 | 1514 | 1316 | 349 | 104 | 18 | 7 | 3 |
| 2011 | 14883 | 3354 | 2301 | 1040 | 546 | 125 | 48 | 9 | 5 |
| 2012 | 17545 | 12186 | 2735 | 1615 | 452 | 192 | 54 | 23 | 6 |
| 2013 | 13985 | 14366 | 9862 | 1965 | 857 | 204 | 100 | 30 | 14 |
| 2014 | 11569 | 11450 | 11720 | 7352 | 1163 | 414 | 98 | 47 | 17 |
| 2015 | 7232 | 9473 | 9365 | 8965 | 4512 | 554 | 172 | 30 | 13 |
| 2016 | 9550 | 5920 | 7748 | 7135 | 5367 | 2035 | 225 | 62 | 13 |
| 2017 | 9437 | 7818 | 4836 | 5800 | 4027 | 2431 | 852 | 98 | 32 |
| 2018 | 12882 | 7724 | 6389 | 3601 | 3137 | 1667 | 818 | 255 | 39 |
| 2019 | 16011 | 10548 | 6316 | 4804 | 1927 | 1235 | 481 | 172 | 58 |
| 2020 | 11904 | 13110 | 8619 | 4737 | 2557 | 758 | 419 | 131 | 62 |
| 2021 | 23085 | 9746 | 10705 | 6513 | 2697 | 1137 | 303 | 150 | 64 |
| 2022 | 19994 | 18904 | 7978 | 8400 | 4442 | 1614 | 628 | 155 | 103 |
| 2023 | 18135 | 16370 | 15447 | 6135 | 5652 | 2763 | 964 | 361 | 144 |
| 2024 | 7297 | 14850 | 13309 | 11526 | 4018 | 3476 | 1668 | 599 | 324 |
| 2025 | 6506 | 5974 | 12058 | 9840 | 7413 | 2431 | 2006 | 981 | 543 |