| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 346 | 171 | 105 | 100 | 8 | 3 | 1 | 0 | 0 |
| 2001 | 361 | 283 | 139 | 50 | 26 | 5 | 2 | 0 | 0 |
| 2002 | 242 | 295 | 228 | 69 | 14 | 16 | 4 | 2 | 0 |
| 2003 | 576 | 198 | 234 | 103 | 24 | 9 | 12 | 3 | 2 |
| 2004 | 1375 | 471 | 157 | 158 | 49 | 8 | 3 | 8 | 1 |
| 2005 | 3362 | 1126 | 375 | 73 | 49 | 14 | 4 | 2 | 0 |
| 2006 | 3547 | 2753 | 874 | 187 | 24 | 17 | 6 | 2 | 0 |
| 2007 | 2943 | 2903 | 2098 | 340 | 69 | 14 | 13 | 4 | 1 |
| 2008 | 1697 | 2410 | 2291 | 699 | 84 | 28 | 4 | 7 | 2 |
| 2009 | 3337 | 1389 | 1916 | 1001 | 87 | 16 | 6 | 2 | 5 |
| 2010 | 2855 | 2733 | 1116 | 1084 | 328 | 32 | 8 | 3 | 4 |
| 2011 | 3726 | 2337 | 2209 | 792 | 478 | 78 | 18 | 5 | 5 |
| 2012 | 4753 | 3051 | 1896 | 1437 | 342 | 113 | 23 | 3 | 5 |
| 2013 | 6576 | 3891 | 2473 | 1249 | 518 | 119 | 47 | 14 | 1 |
| 2014 | 6573 | 5384 | 3178 | 1542 | 681 | 124 | 25 | 12 | 4 |
| 2015 | 7388 | 5381 | 4402 | 2371 | 792 | 299 | 50 | 10 | 6 |
| 2016 | 8793 | 6049 | 4401 | 3248 | 1127 | 278 | 67 | 22 | 10 |
| 2017 | 7060 | 7199 | 4945 | 3336 | 1519 | 477 | 149 | 32 | 18 |
| 2018 | 7962 | 5781 | 5888 | 3880 | 2089 | 850 | 225 | 51 | 23 |
| 2019 | 8022 | 6519 | 4727 | 4542 | 2210 | 890 | 220 | 50 | 14 |
| 2020 | 5825 | 6569 | 5334 | 3523 | 2360 | 565 | 196 | 45 | 17 |
| 2021 | 8758 | 4769 | 5370 | 3881 | 1959 | 905 | 171 | 28 | 14 |
| 2022 | 3470 | 7172 | 3902 | 4085 | 2482 | 1183 | 475 | 91 | 16 |
| 2023 | 1910 | 2841 | 5867 | 3105 | 2535 | 1589 | 681 | 234 | 56 |
| 2024 | 1089 | 1564 | 2323 | 4209 | 1961 | 1198 | 788 | 373 | 196 |
| 2025 | 721 | 892 | 1279 | 1788 | 2513 | 1179 | 488 | 316 | 273 |