| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 1366 | 544 | 216 | 96 | 8 | 1 | 0 | 0 | 0 |
| 2001 | 1740 | 1118 | 439 | 118 | 13 | 2 | 0 | 0 | 0 |
| 2002 | 2066 | 1425 | 903 | 239 | 16 | 3 | 1 | 0 | 0 |
| 2003 | 1683 | 1691 | 1150 | 488 | 33 | 4 | 1 | 0 | 0 |
| 2004 | 2072 | 1378 | 1365 | 626 | 60 | 8 | 1 | 0 | 0 |
| 2005 | 4553 | 1697 | 1112 | 742 | 76 | 14 | 2 | 0 | 0 |
| 2006 | 3260 | 3728 | 1370 | 609 | 106 | 19 | 5 | 1 | 0 |
| 2007 | 3563 | 2669 | 3013 | 767 | 113 | 28 | 8 | 3 | 0 |
| 2008 | 2762 | 2917 | 2160 | 1759 | 151 | 31 | 11 | 4 | 1 |
| 2009 | 3600 | 2261 | 2365 | 1321 | 371 | 40 | 13 | 6 | 2 |
| 2010 | 4252 | 2947 | 1836 | 1531 | 361 | 102 | 18 | 7 | 3 |
| 2011 | 16254 | 3480 | 2397 | 1240 | 541 | 110 | 45 | 9 | 4 |
| 2012 | 14785 | 13310 | 2833 | 1675 | 506 | 185 | 50 | 21 | 6 |
| 2013 | 12687 | 12105 | 10841 | 2055 | 859 | 195 | 87 | 26 | 11 |
| 2014 | 10067 | 10388 | 9873 | 8003 | 1165 | 379 | 86 | 40 | 13 |
| 2015 | 7714 | 8243 | 8481 | 7433 | 4649 | 536 | 171 | 31 | 14 |
| 2016 | 8890 | 6316 | 6732 | 6368 | 4294 | 2061 | 221 | 65 | 13 |
| 2017 | 7358 | 7279 | 5158 | 5018 | 3518 | 1922 | 745 | 87 | 29 |
| 2018 | 10115 | 6024 | 5946 | 3826 | 2739 | 1516 | 660 | 229 | 36 |
| 2019 | 12583 | 8282 | 4920 | 4406 | 2008 | 1162 | 484 | 168 | 63 |
| 2020 | 7160 | 10306 | 6764 | 3674 | 2373 | 784 | 411 | 125 | 62 |
| 2021 | 14541 | 5861 | 8418 | 5082 | 2076 | 1029 | 292 | 132 | 54 |
| 2022 | 11279 | 11907 | 4787 | 6338 | 3008 | 1037 | 449 | 110 | 65 |
| 2023 | 14590 | 9234 | 9718 | 3535 | 3835 | 1608 | 499 | 186 | 68 |
| 2024 | 8446 | 11949 | 7528 | 6869 | 2117 | 2056 | 779 | 207 | 115 |