| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 322 | 127 | 81 | 118 | 7 | 1 | 0 | 0 | 0 |
| 2001 | 400 | 264 | 101 | 40 | 40 | 3 | 1 | 0 | 0 |
| 2002 | 282 | 328 | 209 | 47 | 13 | 18 | 2 | 0 | 0 |
| 2003 | 589 | 231 | 260 | 104 | 16 | 6 | 11 | 1 | 0 |
| 2004 | 1272 | 482 | 184 | 139 | 37 | 7 | 3 | 7 | 0 |
| 2005 | 2917 | 1041 | 379 | 80 | 39 | 12 | 3 | 2 | 0 |
| 2006 | 3797 | 2388 | 812 | 153 | 21 | 12 | 5 | 1 | 0 |
| 2007 | 3043 | 3109 | 1872 | 344 | 46 | 9 | 7 | 3 | 1 |
| 2008 | 1671 | 2491 | 2428 | 685 | 73 | 12 | 4 | 4 | 2 |
| 2009 | 3348 | 1368 | 1957 | 942 | 116 | 10 | 4 | 2 | 2 |
| 2010 | 2610 | 2741 | 1100 | 1102 | 307 | 32 | 5 | 2 | 2 |
| 2011 | 3468 | 2137 | 2223 | 714 | 457 | 97 | 15 | 2 | 2 |
| 2012 | 4814 | 2839 | 1734 | 1415 | 276 | 113 | 33 | 6 | 2 |
| 2013 | 6525 | 3941 | 2307 | 1130 | 571 | 75 | 40 | 14 | 3 |
| 2014 | 6387 | 5342 | 3212 | 1589 | 514 | 168 | 25 | 15 | 5 |
| 2015 | 7408 | 5229 | 4363 | 2349 | 810 | 196 | 64 | 10 | 9 |
| 2016 | 8985 | 6065 | 4272 | 3200 | 1160 | 303 | 74 | 28 | 10 |
| 2017 | 6889 | 7357 | 4956 | 3183 | 1650 | 491 | 125 | 32 | 21 |
| 2018 | 7501 | 5640 | 6018 | 3839 | 1941 | 898 | 224 | 53 | 27 |
| 2019 | 7981 | 6141 | 4611 | 4574 | 2152 | 786 | 251 | 54 | 16 |
| 2020 | 4867 | 6535 | 5020 | 3418 | 2363 | 679 | 185 | 56 | 16 |
| 2021 | 7861 | 3984 | 5341 | 3717 | 1837 | 914 | 196 | 48 | 18 |
| 2022 | 3148 | 6437 | 3259 | 4112 | 2327 | 1079 | 465 | 93 | 36 |
| 2023 | 1696 | 2578 | 5266 | 2521 | 2608 | 1425 | 590 | 241 | 80 |
| 2024 | 943 | 1388 | 2107 | 3944 | 1458 | 1351 | 693 | 306 | 216 |
| 2025 | 620 | 772 | 1135 | 1587 | 2284 | 731 | 544 | 288 | 245 |