| Table 3. Estimated stock numbers at age. | ||||||||||
| Year Age | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 2016 | 346 | 427 | 311 | 201 | 149 | 95 | 61 | 36 | 16 | 37 |
| 2017 | 336 | 293 | 323 | 251 | 147 | 103 | 71 | 41 | 20 | 30 |
| 2018 | 382 | 288 | 201 | 195 | 148 | 88 | 61 | 40 | 23 | 30 |
| 2019 | 409 | 402 | 267 | 178 | 154 | 91 | 70 | 48 | 28 | 30 |
| 2020 | 310 | 467 | 330 | 184 | 118 | 85 | 54 | 43 | 32 | 24 |
| 2021 | 173 | 356 | 365 | 243 | 121 | 87 | 44 | 28 | 28 | 26 |
| 2022 | 130 | 115 | 232 | 216 | 139 | 84 | 57 | 38 | 16 | 35 |
| 2023 | 122 | 100 | 93 | 174 | 157 | 83 | 64 | 40 | 26 | 30 |
| 2024 | 161 | 60 | 95 | 94 | 138 | 108 | 55 | 38 | 24 | 34 |