| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 313 | 113 | 112 | 97 | 6 | 1 | 0 | 0 | 0 |
| 2001 | 375 | 256 | 91 | 55 | 21 | 2 | 0 | 0 | 0 |
| 2002 | 306 | 307 | 206 | 45 | 12 | 7 | 1 | 0 | 0 |
| 2003 | 577 | 250 | 246 | 102 | 12 | 4 | 4 | 1 | 0 |
| 2004 | 1267 | 472 | 201 | 130 | 29 | 4 | 2 | 2 | 0 |
| 2005 | 3207 | 1038 | 378 | 93 | 37 | 9 | 2 | 1 | 0 |
| 2006 | 4056 | 2626 | 831 | 162 | 22 | 13 | 5 | 1 | 0 |
| 2007 | 3489 | 3321 | 2103 | 307 | 31 | 8 | 7 | 2 | 0 |
| 2008 | 1571 | 2857 | 2670 | 821 | 18 | 10 | 4 | 3 | 1 |
| 2009 | 3460 | 1286 | 2304 | 1289 | 100 | 4 | 5 | 2 | 1 |
| 2010 | 2704 | 2833 | 1040 | 1328 | 355 | 23 | 2 | 3 | 1 |
| 2011 | 3809 | 2214 | 2298 | 662 | 508 | 78 | 10 | 1 | 1 |
| 2012 | 4617 | 3119 | 1800 | 1492 | 267 | 116 | 32 | 5 | 1 |
| 2013 | 6400 | 3780 | 2539 | 1195 | 628 | 72 | 45 | 15 | 2 |
| 2014 | 6184 | 5240 | 3083 | 1715 | 581 | 173 | 27 | 19 | 6 |
| 2015 | 6924 | 5063 | 4278 | 2217 | 810 | 202 | 63 | 11 | 9 |
| 2016 | 8417 | 5669 | 4137 | 3141 | 1044 | 271 | 74 | 25 | 8 |
| 2017 | 6555 | 6892 | 4633 | 3102 | 1539 | 402 | 106 | 29 | 13 |
| 2018 | 6727 | 5367 | 5634 | 3531 | 1754 | 683 | 144 | 37 | 15 |
| 2019 | 7851 | 5508 | 4388 | 4276 | 1942 | 713 | 195 | 42 | 17 |
| 2020 | 4826 | 6429 | 4504 | 3285 | 2295 | 662 | 196 | 49 | 19 |
| 2021 | 7785 | 3951 | 5256 | 3353 | 1821 | 943 | 203 | 51 | 22 |
| 2022 | 3324 | 6375 | 3231 | 3968 | 1981 | 948 | 390 | 68 | 25 |
| 2023 | 1761 | 2722 | 5214 | 2471 | 2373 | 1084 | 431 | 141 | 35 |
| 2024 | 975 | 1442 | 2226 | 3902 | 1488 | 1186 | 469 | 168 | 71 |
| 2025 | 612 | 798 | 1179 | 1674 | 2269 | 770 | 448 | 169 | 80 |