| Table 3. Estimated stock numbers at age. | |||||||||
| Year Age | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 2000 | 305 | 114 | 112 | 98 | 6 | 1 | 0 | 0 | 0 |
| 2001 | 354 | 250 | 92 | 54 | 21 | 2 | 0 | 0 | 0 |
| 2002 | 291 | 290 | 201 | 45 | 12 | 7 | 1 | 0 | 0 |
| 2003 | 560 | 238 | 232 | 98 | 11 | 4 | 4 | 1 | 0 |
| 2004 | 1231 | 458 | 191 | 122 | 28 | 4 | 2 | 2 | 0 |
| 2005 | 3165 | 1007 | 366 | 88 | 35 | 9 | 2 | 1 | 0 |
| 2006 | 3835 | 2592 | 805 | 155 | 21 | 12 | 4 | 1 | 0 |
| 2007 | 3255 | 3139 | 2071 | 287 | 31 | 7 | 6 | 2 | 0 |
| 2008 | 1530 | 2665 | 2520 | 770 | 19 | 10 | 4 | 3 | 1 |
| 2009 | 3321 | 1253 | 2147 | 1181 | 97 | 4 | 5 | 2 | 1 |
| 2010 | 2664 | 2719 | 1012 | 1222 | 336 | 23 | 2 | 2 | 1 |
| 2011 | 3666 | 2181 | 2204 | 645 | 475 | 76 | 10 | 1 | 1 |
| 2012 | 4515 | 3001 | 1772 | 1423 | 259 | 112 | 31 | 5 | 1 |
| 2013 | 6263 | 3697 | 2442 | 1167 | 589 | 71 | 43 | 15 | 2 |
| 2014 | 6121 | 5128 | 3014 | 1636 | 565 | 164 | 26 | 18 | 5 |
| 2015 | 6795 | 5011 | 4186 | 2168 | 778 | 198 | 60 | 10 | 8 |
| 2016 | 8208 | 5564 | 4093 | 3072 | 1016 | 265 | 72 | 24 | 7 |
| 2017 | 6197 | 6721 | 4546 | 3072 | 1490 | 399 | 105 | 28 | 12 |
| 2018 | 6353 | 5074 | 5494 | 3471 | 1748 | 681 | 146 | 36 | 14 |
| 2019 | 7322 | 5201 | 4148 | 4167 | 1902 | 707 | 194 | 41 | 15 |
| 2020 | 3932 | 5996 | 4253 | 3086 | 2182 | 612 | 189 | 46 | 17 |
| 2021 | 6445 | 3219 | 4902 | 3133 | 1652 | 847 | 181 | 45 | 18 |
| 2022 | 2786 | 5278 | 2632 | 3671 | 1802 | 831 | 338 | 55 | 19 |
| 2023 | 1662 | 2281 | 4317 | 1995 | 2132 | 953 | 358 | 105 | 24 |
| 2024 | 1299 | 1361 | 1865 | 3178 | 1118 | 1013 | 388 | 112 | 44 |