| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 1618 | 780 | 159 | 86 | 5 | 1 | 0 | 0 | 0 |
| 2001 | 1222 | 1325 | 637 | 87 | 22 | 2 | 0 | 0 | 0 |
| 2002 | 1788 | 1001 | 1072 | 327 | 20 | 7 | 1 | 0 | 0 |
| 2003 | 1725 | 1464 | 761 | 506 | 62 | 6 | 3 | 0 | 0 |
| 2004 | 2128 | 1412 | 1141 | 387 | 67 | 19 | 3 | 1 | 0 |
| 2005 | 3883 | 1742 | 1000 | 471 | 39 | 21 | 8 | 1 | 0 |
| 2006 | 3869 | 3179 | 1098 | 329 | 56 | 12 | 9 | 4 | 0 |
| 2007 | 3058 | 3168 | 2102 | 311 | 54 | 18 | 5 | 4 | 1 |
| 2008 | 2797 | 2503 | 2138 | 885 | 61 | 18 | 8 | 2 | 1 |
| 2009 | 2867 | 2290 | 1904 | 1011 | 239 | 20 | 7 | 3 | 1 |
| 2010 | 4880 | 2347 | 1812 | 1162 | 342 | 80 | 8 | 3 | 1 |
| 2011 | 9131 | 3995 | 1908 | 1231 | 480 | 112 | 32 | 3 | 1 |
| 2012 | 11240 | 7476 | 3252 | 1299 | 518 | 162 | 44 | 14 | 1 |
| 2013 | 12075 | 9203 | 6065 | 2332 | 647 | 181 | 62 | 18 | 4 |
| 2014 | 8333 | 9887 | 7502 | 4417 | 1296 | 230 | 68 | 25 | 5 |
| 2015 | 6723 | 6822 | 8083 | 5636 | 2396 | 465 | 83 | 26 | 8 |
| 2016 | 8116 | 5504 | 5579 | 6020 | 3024 | 841 | 159 | 31 | 8 |
| 2017 | 4492 | 6647 | 4501 | 4027 | 2603 | 1036 | 270 | 57 | 10 |
| 2018 | 7174 | 3677 | 5435 | 3180 | 1500 | 847 | 317 | 91 | 17 |
| 2019 | 6402 | 5875 | 3007 | 3836 | 1231 | 478 | 256 | 103 | 27 |
| 2020 | 5682 | 5242 | 4799 | 2147 | 1699 | 397 | 147 | 83 | 33 |
| 2021 | 14029 | 4651 | 4282 | 3501 | 957 | 568 | 125 | 49 | 30 |
| 2022 | 8459 | 11489 | 3804 | 3083 | 1660 | 329 | 187 | 42 | 21 |
| 2023 | 10516 | 6924 | 9371 | 2587 | 1386 | 590 | 115 | 65 | 17 |
| 2024 | 9099 | 8611 | 5595 | 5759 | 1156 | 495 | 207 | 40 | 22 |