| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 346 | 128 | 93 | 89 | 6 | 1 | 0 | 0 | 0 |
| 2001 | 383 | 283 | 103 | 45 | 20 | 2 | 0 | 0 | 0 |
| 2002 | 318 | 313 | 229 | 52 | 11 | 6 | 1 | 0 | 0 |
| 2003 | 607 | 260 | 252 | 114 | 14 | 3 | 3 | 0 | 0 |
| 2004 | 1285 | 497 | 209 | 131 | 35 | 4 | 1 | 1 | 0 |
| 2005 | 2984 | 1052 | 400 | 100 | 38 | 10 | 2 | 1 | 0 |
| 2006 | 3501 | 2443 | 845 | 180 | 27 | 11 | 5 | 1 | 0 |
| 2007 | 3385 | 2866 | 1963 | 337 | 44 | 9 | 5 | 2 | 0 |
| 2008 | 1592 | 2771 | 2310 | 779 | 58 | 13 | 4 | 3 | 1 |
| 2009 | 3748 | 1303 | 2239 | 1094 | 134 | 14 | 6 | 2 | 1 |
| 2010 | 2889 | 3069 | 1055 | 1276 | 298 | 31 | 6 | 3 | 1 |
| 2011 | 3687 | 2365 | 2491 | 665 | 477 | 69 | 13 | 3 | 1 |
| 2012 | 4624 | 3019 | 1923 | 1614 | 261 | 115 | 28 | 6 | 1 |
| 2013 | 6536 | 3786 | 2458 | 1278 | 655 | 71 | 46 | 13 | 2 |
| 2014 | 6194 | 5351 | 3087 | 1669 | 598 | 175 | 27 | 19 | 5 |
| 2015 | 7053 | 5071 | 4368 | 2215 | 758 | 202 | 66 | 11 | 9 |
| 2016 | 8525 | 5775 | 4142 | 3203 | 1017 | 250 | 77 | 26 | 8 |
| 2017 | 6376 | 6980 | 4718 | 3100 | 1544 | 379 | 98 | 30 | 13 |
| 2018 | 6285 | 5221 | 5705 | 3584 | 1722 | 656 | 136 | 35 | 16 |
| 2019 | 7727 | 5146 | 4268 | 4322 | 1955 | 694 | 191 | 41 | 17 |
| 2020 | 4440 | 6327 | 4208 | 3197 | 2334 | 687 | 198 | 50 | 19 |
| 2021 | 7494 | 3635 | 5173 | 3138 | 1779 | 973 | 215 | 53 | 23 |
| 2022 | 3147 | 6137 | 2973 | 3897 | 1834 | 910 | 396 | 71 | 26 |
| 2023 | 1678 | 2577 | 5019 | 2263 | 2300 | 979 | 405 | 141 | 36 |
| 2024 | 860 | 1374 | 2107 | 3749 | 1355 | 1137 | 419 | 154 | 70 |
| 2025 | 513 | 704 | 1124 | 1580 | 2153 | 691 | 430 | 150 | 75 |