| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 311 | 106 | 99 | 100 | 7 | 1 | 0 | 0 | 0 |
| 2001 | 373 | 255 | 86 | 53 | 31 | 3 | 0 | 0 | 0 |
| 2002 | 298 | 306 | 205 | 44 | 15 | 12 | 2 | 0 | 0 |
| 2003 | 588 | 244 | 245 | 105 | 13 | 6 | 7 | 1 | 0 |
| 2004 | 1204 | 481 | 196 | 135 | 35 | 5 | 3 | 4 | 0 |
| 2005 | 3217 | 985 | 384 | 97 | 38 | 12 | 2 | 1 | 0 |
| 2006 | 3838 | 2634 | 779 | 169 | 22 | 11 | 5 | 1 | 0 |
| 2007 | 3226 | 3142 | 2080 | 341 | 43 | 8 | 6 | 3 | 0 |
| 2008 | 1625 | 2641 | 2454 | 732 | 38 | 10 | 4 | 3 | 1 |
| 2009 | 3382 | 1330 | 2094 | 1050 | 98 | 7 | 4 | 2 | 1 |
| 2010 | 2768 | 2769 | 1073 | 1207 | 309 | 27 | 3 | 2 | 1 |
| 2011 | 3661 | 2266 | 2250 | 703 | 488 | 96 | 12 | 2 | 2 |
| 2012 | 4659 | 2997 | 1841 | 1451 | 264 | 125 | 36 | 5 | 1 |
| 2013 | 6101 | 3814 | 2438 | 1214 | 585 | 77 | 49 | 17 | 2 |
| 2014 | 6865 | 4995 | 3110 | 1674 | 536 | 168 | 26 | 17 | 6 |
| 2015 | 7287 | 5620 | 4081 | 2272 | 849 | 200 | 66 | 11 | 10 |
| 2016 | 9040 | 5966 | 4593 | 2990 | 1096 | 293 | 74 | 28 | 10 |
| 2017 | 6516 | 7402 | 4877 | 3443 | 1565 | 448 | 120 | 34 | 19 |
| 2018 | 6584 | 5335 | 6055 | 3772 | 2130 | 780 | 194 | 52 | 25 |
| 2019 | 8238 | 5391 | 4363 | 4608 | 2147 | 890 | 239 | 38 | 21 |
| 2020 | 5325 | 6746 | 4408 | 3238 | 2375 | 739 | 230 | 24 | 12 |
| 2021 | 7589 | 4360 | 5515 | 3248 | 1709 | 968 | 237 | 49 | 11 |
| 2022 | 3492 | 6215 | 3567 | 4229 | 2031 | 955 | 479 | 122 | 33 |
| 2023 | 1485 | 2859 | 5085 | 2757 | 2704 | 1159 | 488 | 261 | 92 |
| 2024 | 838 | 1216 | 2338 | 3824 | 1641 | 1357 | 524 | 255 | 220 |
| 2025 | 555 | 686 | 995 | 1772 | 2284 | 832 | 539 | 204 | 224 |