| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 345 | 144 | 99 | 75 | 6 | 1 | 1 | 0 | 0 |
| 2001 | 341 | 282 | 115 | 48 | 16 | 3 | 0 | 1 | 0 |
| 2002 | 262 | 279 | 226 | 60 | 13 | 9 | 2 | 0 | 0 |
| 2003 | 599 | 214 | 224 | 123 | 22 | 8 | 6 | 2 | 0 |
| 2004 | 1310 | 491 | 172 | 131 | 44 | 8 | 3 | 3 | 0 |
| 2005 | 3214 | 1072 | 392 | 88 | 39 | 16 | 4 | 2 | 0 |
| 2006 | 3696 | 2632 | 851 | 179 | 22 | 12 | 6 | 1 | 0 |
| 2007 | 3255 | 3026 | 2098 | 425 | 74 | 13 | 8 | 5 | 1 |
| 2008 | 1734 | 2665 | 2396 | 800 | 72 | 24 | 5 | 4 | 2 |
| 2009 | 3281 | 1420 | 2123 | 986 | 97 | 13 | 8 | 2 | 3 |
| 2010 | 2921 | 2686 | 1146 | 1237 | 297 | 31 | 6 | 4 | 3 |
| 2011 | 3798 | 2392 | 2182 | 775 | 543 | 95 | 15 | 4 | 5 |
| 2012 | 4690 | 3109 | 1944 | 1419 | 301 | 115 | 25 | 4 | 3 |
| 2013 | 6295 | 3839 | 2530 | 1304 | 634 | 103 | 50 | 16 | 3 |
| 2014 | 6527 | 5154 | 3130 | 1725 | 585 | 144 | 26 | 15 | 5 |
| 2015 | 7058 | 5344 | 4210 | 2314 | 935 | 233 | 56 | 12 | 10 |
| 2016 | 8888 | 5778 | 4367 | 3095 | 1091 | 288 | 75 | 25 | 13 |
| 2017 | 6836 | 7278 | 4723 | 3298 | 1646 | 463 | 128 | 39 | 23 |
| 2018 | 7107 | 5597 | 5953 | 3674 | 2076 | 839 | 202 | 50 | 30 |
| 2019 | 7685 | 5819 | 4577 | 4554 | 2085 | 841 | 243 | 38 | 22 |
| 2020 | 5114 | 6293 | 4758 | 3418 | 2337 | 673 | 210 | 41 | 17 |
| 2021 | 8290 | 4187 | 5144 | 3500 | 1761 | 903 | 193 | 41 | 17 |
| 2022 | 3325 | 6789 | 3425 | 3956 | 2234 | 1020 | 461 | 106 | 32 |
| 2023 | 1802 | 2722 | 5555 | 2667 | 2600 | 1343 | 528 | 246 | 84 |
| 2024 | 1007 | 1475 | 2226 | 4165 | 1575 | 1339 | 589 | 262 | 211 |
| 2025 | 687 | 824 | 1207 | 1701 | 2575 | 856 | 503 | 199 | 227 |