| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 359 | 151 | 94 | 69 | 4 | 0 | 0 | 0 | 0 |
| 2001 | 353 | 294 | 121 | 44 | 16 | 1 | 0 | 0 | 0 |
| 2002 | 306 | 289 | 234 | 59 | 11 | 5 | 1 | 0 | 0 |
| 2003 | 609 | 250 | 229 | 117 | 16 | 3 | 2 | 0 | 0 |
| 2004 | 1285 | 499 | 198 | 127 | 34 | 5 | 1 | 1 | 0 |
| 2005 | 2945 | 1052 | 393 | 97 | 36 | 10 | 2 | 1 | 0 |
| 2006 | 3471 | 2412 | 822 | 178 | 27 | 10 | 4 | 1 | 0 |
| 2007 | 3429 | 2842 | 1879 | 284 | 48 | 8 | 5 | 2 | 0 |
| 2008 | 1627 | 2808 | 2247 | 595 | 68 | 14 | 3 | 2 | 1 |
| 2009 | 3716 | 1332 | 2237 | 997 | 144 | 18 | 6 | 1 | 1 |
| 2010 | 2979 | 3043 | 1069 | 1300 | 292 | 37 | 7 | 2 | 1 |
| 2011 | 3692 | 2439 | 2458 | 699 | 458 | 75 | 15 | 3 | 1 |
| 2012 | 4527 | 3023 | 1978 | 1608 | 265 | 122 | 30 | 6 | 1 |
| 2013 | 6420 | 3706 | 2457 | 1312 | 646 | 75 | 48 | 11 | 2 |
| 2014 | 6104 | 5256 | 3022 | 1628 | 582 | 187 | 29 | 18 | 5 |
| 2015 | 6943 | 4997 | 4291 | 2177 | 729 | 192 | 71 | 11 | 8 |
| 2016 | 8432 | 5684 | 4083 | 3151 | 1004 | 242 | 71 | 26 | 6 |
| 2017 | 6308 | 6904 | 4644 | 3071 | 1524 | 359 | 89 | 26 | 11 |
| 2018 | 6175 | 5165 | 5643 | 3562 | 1616 | 591 | 123 | 33 | 13 |
| 2019 | 7529 | 5056 | 4222 | 4295 | 1894 | 634 | 184 | 45 | 16 |
| 2020 | 4426 | 6165 | 4134 | 3141 | 2317 | 734 | 197 | 68 | 21 |
| 2021 | 7400 | 3624 | 5040 | 3039 | 1739 | 991 | 243 | 73 | 31 |
| 2022 | 3102 | 6060 | 2963 | 3794 | 1733 | 832 | 372 | 89 | 36 |
| 2023 | 1696 | 2540 | 4954 | 2276 | 2189 | 863 | 329 | 137 | 43 |
| 2024 | 849 | 1388 | 2076 | 3656 | 1328 | 1070 | 335 | 121 | 62 |
| 2025 | 509 | 695 | 1135 | 1556 | 2098 | 661 | 393 | 123 | 63 |