| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 1237 | 485 | 187 | 144 | 7 | 1 | 0 | 0 | 0 |
| 2001 | 1556 | 1013 | 396 | 97 | 26 | 3 | 0 | 0 | 0 |
| 2002 | 1873 | 1274 | 818 | 203 | 17 | 8 | 1 | 0 | 0 |
| 2003 | 1721 | 1533 | 982 | 412 | 33 | 5 | 4 | 1 | 0 |
| 2004 | 2255 | 1409 | 1209 | 502 | 57 | 8 | 2 | 2 | 0 |
| 2005 | 4658 | 1846 | 1020 | 606 | 68 | 14 | 3 | 1 | 0 |
| 2006 | 3994 | 3812 | 1245 | 510 | 93 | 18 | 6 | 2 | 0 |
| 2007 | 3491 | 3268 | 2466 | 636 | 105 | 26 | 8 | 4 | 1 |
| 2008 | 2779 | 2858 | 2326 | 1325 | 148 | 31 | 12 | 4 | 1 |
| 2009 | 3021 | 2275 | 2234 | 1342 | 319 | 42 | 14 | 6 | 3 |
| 2010 | 4619 | 2473 | 1813 | 1388 | 448 | 95 | 20 | 8 | 6 |
| 2011 | 12705 | 3781 | 2014 | 1182 | 547 | 153 | 45 | 10 | 6 |
| 2012 | 16579 | 10402 | 3085 | 1350 | 503 | 193 | 76 | 14 | 8 |
| 2013 | 15507 | 13575 | 8378 | 2279 | 733 | 232 | 106 | 52 | 10 |
| 2014 | 11962 | 12697 | 11076 | 6114 | 1396 | 354 | 111 | 58 | 26 |
| 2015 | 8396 | 9794 | 10386 | 8584 | 3733 | 668 | 180 | 23 | 13 |
| 2016 | 10266 | 6873 | 8012 | 7940 | 5240 | 1623 | 258 | 72 | 11 |
| 2017 | 6919 | 8407 | 5615 | 6010 | 4154 | 2408 | 622 | 130 | 45 |
| 2018 | 10871 | 5663 | 6872 | 4187 | 3225 | 1727 | 793 | 199 | 59 |
| 2019 | 13405 | 8903 | 4630 | 5076 | 2184 | 1297 | 478 | 159 | 47 |
| 2020 | 9959 | 10978 | 7272 | 3468 | 2734 | 759 | 437 | 110 | 58 |
| 2021 | 21828 | 8152 | 8958 | 5555 | 1984 | 1189 | 296 | 167 | 48 |
| 2022 | 14587 | 17876 | 6673 | 6939 | 3525 | 1080 | 614 | 155 | 93 |
| 2023 | 12267 | 11943 | 14607 | 5132 | 4414 | 2071 | 618 | 346 | 127 |
| 2024 | 8567 | 10044 | 9681 | 10517 | 3343 | 2438 | 1046 | 314 | 324 |
| 2025 | 7763 | 7014 | 8117 | 6732 | 6523 | 1987 | 1265 | 476 | 297 |