| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 331 | 162 | 79 | 80 | 3 | 0 | 0 | 0 | 0 |
| 2001 | 345 | 271 | 129 | 34 | 18 | 1 | 0 | 0 | 0 |
| 2002 | 240 | 282 | 216 | 61 | 9 | 8 | 1 | 0 | 0 |
| 2003 | 574 | 197 | 226 | 114 | 22 | 4 | 5 | 1 | 0 |
| 2004 | 1315 | 470 | 158 | 129 | 41 | 8 | 2 | 2 | 0 |
| 2005 | 3049 | 1077 | 374 | 75 | 34 | 11 | 3 | 1 | 0 |
| 2006 | 3470 | 2496 | 853 | 164 | 17 | 8 | 3 | 1 | 0 |
| 2007 | 3240 | 2841 | 1989 | 419 | 58 | 8 | 5 | 2 | 0 |
| 2008 | 1574 | 2653 | 2249 | 779 | 81 | 15 | 3 | 2 | 1 |
| 2009 | 3763 | 1288 | 2105 | 866 | 92 | 12 | 4 | 1 | 1 |
| 2010 | 2903 | 3082 | 1040 | 1223 | 268 | 28 | 5 | 2 | 1 |
| 2011 | 3598 | 2377 | 2502 | 691 | 507 | 89 | 12 | 3 | 1 |
| 2012 | 4463 | 2945 | 1931 | 1630 | 260 | 133 | 32 | 5 | 1 |
| 2013 | 6306 | 3653 | 2396 | 1275 | 629 | 74 | 50 | 14 | 3 |
| 2014 | 6182 | 5162 | 2977 | 1642 | 541 | 174 | 24 | 20 | 6 |
| 2015 | 7410 | 5061 | 4215 | 2171 | 794 | 193 | 66 | 10 | 11 |
| 2016 | 8844 | 6067 | 4134 | 3087 | 993 | 255 | 66 | 26 | 9 |
| 2017 | 6242 | 7241 | 4957 | 3099 | 1552 | 376 | 98 | 27 | 15 |
| 2018 | 5894 | 5111 | 5922 | 3850 | 1912 | 771 | 164 | 41 | 18 |
| 2019 | 7453 | 4826 | 4179 | 4517 | 2166 | 778 | 229 | 44 | 18 |
| 2020 | 4131 | 6103 | 3945 | 3104 | 2311 | 748 | 187 | 47 | 15 |
| 2021 | 7458 | 3382 | 4987 | 2884 | 1567 | 866 | 195 | 41 | 16 |
| 2022 | 2927 | 6107 | 2767 | 3810 | 1770 | 841 | 386 | 77 | 24 |
| 2023 | 1584 | 2396 | 4995 | 2139 | 2434 | 1006 | 410 | 168 | 45 |
| 2024 | 780 | 1296 | 1959 | 3726 | 1230 | 1189 | 418 | 155 | 86 |
| 2025 | 450 | 638 | 1060 | 1481 | 2188 | 612 | 468 | 142 | 85 |