| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 1797 | 797 | 161 | 84 | 5 | 1 | 0 | 0 | 0 |
| 2001 | 1378 | 1471 | 651 | 89 | 21 | 2 | 0 | 0 | 0 |
| 2002 | 2144 | 1128 | 1190 | 335 | 20 | 7 | 1 | 0 | 0 |
| 2003 | 1879 | 1755 | 859 | 558 | 62 | 7 | 3 | 0 | 0 |
| 2004 | 2114 | 1538 | 1367 | 437 | 69 | 19 | 3 | 1 | 0 |
| 2005 | 3857 | 1731 | 1082 | 554 | 41 | 22 | 8 | 1 | 0 |
| 2006 | 3599 | 3158 | 1099 | 350 | 58 | 13 | 9 | 4 | 0 |
| 2007 | 2901 | 2947 | 2097 | 310 | 55 | 19 | 5 | 4 | 1 |
| 2008 | 2703 | 2375 | 2014 | 884 | 58 | 18 | 8 | 2 | 1 |
| 2009 | 2643 | 2213 | 1811 | 956 | 235 | 19 | 7 | 3 | 1 |
| 2010 | 4412 | 2164 | 1751 | 1103 | 318 | 79 | 8 | 3 | 1 |
| 2011 | 8720 | 3613 | 1759 | 1186 | 456 | 106 | 32 | 3 | 1 |
| 2012 | 10633 | 7140 | 2940 | 1196 | 504 | 155 | 42 | 13 | 1 |
| 2013 | 11435 | 8706 | 5790 | 2102 | 599 | 176 | 60 | 17 | 4 |
| 2014 | 7915 | 9363 | 7096 | 4201 | 1173 | 214 | 66 | 24 | 5 |
| 2015 | 6881 | 6480 | 7654 | 5308 | 2269 | 421 | 78 | 25 | 7 |
| 2016 | 8481 | 5633 | 5299 | 5672 | 2825 | 798 | 147 | 29 | 8 |
| 2017 | 4431 | 6945 | 4607 | 3806 | 2435 | 971 | 263 | 53 | 10 |
| 2018 | 7816 | 3627 | 5678 | 3241 | 1404 | 800 | 306 | 90 | 16 |
| 2019 | 6546 | 6399 | 2966 | 3992 | 1221 | 452 | 249 | 102 | 27 |
| 2020 | 5524 | 5359 | 5228 | 2112 | 1718 | 397 | 143 | 83 | 33 |
| 2021 | 14134 | 4522 | 4378 | 3803 | 930 | 575 | 128 | 49 | 30 |
| 2022 | 6461 | 11574 | 3699 | 3140 | 1759 | 319 | 192 | 44 | 21 |
| 2023 | 9599 | 5289 | 9437 | 2492 | 1386 | 621 | 113 | 67 | 18 |
| 2024 | 7188 | 7860 | 4265 | 5691 | 1094 | 491 | 219 | 40 | 23 |