| Table 3. Estimated stock numbers at age. | ||||||
| Year Age | 1 | 2 | 3 | 4 | 5 | 6 | 
| 2014 | 46750 | 31285 | 28141 | 18425 | 1981 | 97 | 
| 2015 | 29454 | 48847 | 45319 | 35380 | 7284 | 668 | 
| 2016 | 44979 | 39622 | 32355 | 20572 | 6732 | 1061 | 
| 2017 | 11262 | 19940 | 18161 | 15793 | 6559 | 1922 | 
| 2018 | 6337 | 9718 | 10668 | 7666 | 8701 | 2148 | 
| 2019 | 6738 | 7827 | 3762 | 3717 | 3522 | 1978 | 
| 2020 | 6623 | 4795 | 5400 | 4403 | 2940 | 779 | 
| 2021 | 3049 | 3882 | 3716 | 2456 | 1871 | 342 | 
| 2022 | 3668 | 2269 | 1869 | 2200 | 1528 | 828 | 
| 2023 | 6193 | 3563 | 4394 | 2014 | 705 | 393 | 
| 2024 | 2319 | 3132 | 2103 | 2053 | 1502 | 806 |