| Table 3. Estimated stock numbers at age. | ||||||||||
| Year Age | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 1994 | 1153 | 1039 | 203 | 110 | 54 | 34 | 59 | 49 | 27 | 6 |
| 1995 | 1470 | 884 | 443 | 118 | 65 | 30 | 22 | 42 | 30 | 14 |
| 1996 | 768 | 1530 | 1283 | 390 | 93 | 62 | 26 | 23 | 46 | 19 |
| 1997 | 27 | 916 | 1163 | 985 | 332 | 81 | 53 | 22 | 9 | 67 |
| 1998 | 443 | 7 | 533 | 619 | 577 | 193 | 55 | 33 | 8 | 26 |
| 1999 | 871 | 520 | 4 | 290 | 327 | 182 | 49 | 6 | 6 | 2 |
| 2000 | 2177 | 1065 | 358 | 7 | 185 | 206 | 88 | 17 | 0 | 3 |
| 2001 | 1006 | 2456 | 624 | 198 | 11 | 172 | 121 | 45 | 8 | 1 |
| 2002 | 1368 | 915 | 1494 | 403 | 92 | 40 | 177 | 52 | 11 | 3 |
| 2003 | 368 | 1794 | 656 | 828 | 237 | 94 | 83 | 148 | 12 | 18 |
| 2004 | 569 | 505 | 950 | 388 | 328 | 54 | 16 | 6 | 3 | 1 |
| 2005 | 590 | 478 | 237 | 342 | 154 | 44 | 4 | 0 | 0 | 0 |
| 2006 | 177 | 526 | 211 | 97 | 114 | 67 | 18 | 3 | 1 | 0 |
| 2007 | 35 | 185 | 303 | 93 | 50 | 31 | 11 | 1 | 1 | 0 |
| 2008 | 35 | 35 | 101 | 167 | 54 | 24 | 10 | 3 | 1 | 0 |
| 2009 | 31 | 56 | 31 | 45 | 86 | 28 | 19 | 5 | 1 | 0 |
| 2010 | 7 | 22 | 59 | 35 | 43 | 57 | 20 | 16 | 11 | 1 |
| 2011 | 6 | 2 | 24 | 69 | 36 | 60 | 75 | 27 | 14 | 13 |
| 2012 | 7 | 3 | 1 | 12 | 31 | 24 | 37 | 35 | 15 | 14 |
| 2013 | 7 | 4 | 1 | 1 | 13 | 25 | 19 | 27 | 15 | 14 |
| 2014 | 12 | 3 | 4 | 2 | 4 | 18 | 29 | 17 | 24 | 18 |
| 2015 | 52 | 7 | 2 | 2 | 1 | 3 | 15 | 18 | 12 | 28 |
| 2016 | 191 | 32 | 10 | 1 | 1 | 1 | 2 | 9 | 7 | 33 |
| 2017 | 367 | 133 | 40 | 8 | 1 | 0 | 1 | 3 | 8 | 27 |
| 2018 | 53 | 446 | 109 | 43 | 7 | 2 | 1 | 1 | 1 | 27 |
| 2019 | 196 | 47 | 478 | 117 | 20 | 2 | 1 | 2 | 1 | 28 |
| 2020 | 37 | 291 | 81 | 315 | 64 | 10 | 1 | 0 | 1 | 13 |
| 2021 | 99 | 18 | 218 | 128 | 184 | 31 | 3 | 0 | 0 | 7 |
| 2022 | 133 | 107 | 49 | 222 | 249 | 168 | 18 | 5 | 0 | 16 |
| 2023 | 296 | 74 | 106 | 146 | 407 | 453 | 139 | 15 | 1 | 13 |
| 2024 | 645 | 192 | 65 | 76 | 188 | 355 | 276 | 59 | 3 | 11 |
| 2025 | 359 | 733 | 145 | 58 | 61 | 154 | 291 | 182 | 27 | 11 |