| Table 3. Estimated stock numbers at age. | ||||||||||
| Year Age | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 2016 | 1095 | 645 | 503 | 399 | 304 | 180 | 95 | 45 | 31 | 74 |
| 2017 | 1083 | 942 | 552 | 417 | 295 | 199 | 115 | 57 | 26 | 72 |
| 2018 | 991 | 932 | 807 | 460 | 314 | 202 | 128 | 69 | 32 | 66 |
| 2019 | 907 | 852 | 798 | 668 | 333 | 206 | 122 | 70 | 34 | 60 |
| 2020 | 913 | 780 | 729 | 650 | 442 | 194 | 105 | 60 | 28 | 54 |
| 2021 | 910 | 785 | 667 | 598 | 441 | 233 | 76 | 48 | 25 | 49 |
| 2022 | 923 | 782 | 672 | 549 | 417 | 260 | 131 | 51 | 31 | 54 |
| 2023 | 929 | 793 | 669 | 547 | 365 | 231 | 146 | 81 | 34 | 65 |
| 2024 | 938 | 799 | 678 | 544 | 373 | 230 | 158 | 107 | 64 | 80 |