| Table 3. Estimated stock numbers at age. | ||||||||||
| Year Age | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 2016 | 775 | 760 | 555 | 369 | 276 | 147 | 86 | 36 | 21 | 48 |
| 2017 | 775 | 715 | 613 | 443 | 285 | 175 | 89 | 49 | 19 | 42 |
| 2018 | 775 | 698 | 646 | 490 | 317 | 195 | 106 | 53 | 26 | 37 |
| 2019 | 775 | 650 | 607 | 552 | 344 | 194 | 114 | 54 | 25 | 34 |
| 2020 | 775 | 662 | 529 | 511 | 349 | 186 | 85 | 51 | 20 | 30 |
| 2021 | 775 | 645 | 566 | 429 | 313 | 174 | 61 | 33 | 19 | 26 |
| 2022 | 775 | 627 | 590 | 423 | 295 | 157 | 82 | 32 | 17 | 27 |
| 2023 | 775 | 675 | 521 | 489 | 248 | 171 | 67 | 38 | 17 | 27 |
| 2024 | 775 | 665 | 570 | 432 | 326 | 118 | 117 | 41 | 25 | 32 |