| Table 2. Estimated stock numbers. | ||||
| Time\Age | 0 | 1 | 2 | 3 |
| 1984 | 0 | 40008 | 4805 | 217 |
| 1984.25 | 0 | 28342 | 3066 | 218 |
| 1984.5 | 36011 | 17400 | 1615 | 8 |
| 1984.75 | 24595 | 8907 | 372 | 0 |
| 1985 | 0 | 14146 | 3514 | 171 |
| 1985.25 | 0 | 10220 | 1547 | 32 |
| 1985.5 | 32751 | 6186 | 807 | 13 |
| 1985.75 | 21751 | 3239 | 164 | 0 |
| 1986 | 0 | 12353 | 1308 | 80 |
| 1986.25 | 0 | 8201 | 601 | 10 |
| 1986.5 | 55113 | 4855 | 309 | 4 |
| 1986.75 | 37812 | 2688 | 74 | 0 |
| 1987 | 0 | 23241 | 1102 | 14 |
| 1987.25 | 0 | 16474 | 536 | 0 |
| 1987.5 | 12898 | 10346 | 339 | 1 |
| 1987.75 | 7009 | 6859 | 183 | 3 |
| 1988 | 0 | 3416 | 2712 | 20 |
| 1988.25 | 0 | 2601 | 1313 | 0 |
| 1988.5 | 55273 | 1742 | 755 | 0 |
| 1988.75 | 35786 | 1342 | 421 | 0 |
| 1989 | 0 | 21285 | 680 | 46 |
| 1989.25 | 0 | 14198 | 488 | 16 |
| 1989.5 | 44707 | 8509 | 292 | 9 |
| 1989.75 | 27516 | 5290 | 151 | 9 |
| 1990 | 0 | 15506 | 2188 | 52 |
| 1990.25 | 0 | 11622 | 1212 | 29 |
| 1990.5 | 60845 | 7483 | 557 | 9 |
| 1990.75 | 38454 | 5490 | 311 | 5 |
| 1991 | 0 | 23782 | 3150 | 189 |
| 1991.25 | 0 | 15674 | 1651 | 47 |
| 1991.5 | 104051 | 9420 | 819 | 32 |
| 1991.75 | 71001 | 6488 | 455 | 19 |
| 1992 | 0 | 46859 | 3652 | 160 |
| 1992.25 | 0 | 31841 | 1952 | 31 |
| 1992.5 | 70042 | 20113 | 1053 | 3 |
| 1992.75 | 38984 | 13382 | 545 | 2 |
| 1993 | 0 | 23642 | 6927 | 104 |
| 1993.25 | 0 | 15372 | 4215 | 96 |
| 1993.5 | 56188 | 8544 | 2225 | 25 |
| 1993.75 | 33002 | 4907 | 873 | 2 |
| 1994 | 0 | 19106 | 2222 | 112 |
| 1994.25 | 0 | 12322 | 1324 | 64 |
| 1994.5 | 131682 | 6814 | 675 | 35 |
| 1994.75 | 90214 | 3584 | 153 | 0 |
| 1995 | 0 | 59373 | 1892 | 40 |
| 1995.25 | 0 | 41140 | 1168 | 45 |
| 1995.5 | 77449 | 23333 | 528 | 6 |
| 1995.75 | 43696 | 14666 | 264 | 4 |
| 1996 | 0 | 23272 | 7330 | 119 |
| 1996.25 | 0 | 16759 | 4898 | 118 |
| 1996.5 | 114572 | 9482 | 2622 | 36 |
| 1996.75 | 80987 | 6306 | 1276 | 1 |
| 1997 | 0 | 53846 | 4043 | 458 |
| 1997.25 | 0 | 37491 | 2975 | 613 |
| 1997.5 | 35202 | 24163 | 1838 | 210 |
| 1997.75 | 21953 | 16615 | 1073 | 81 |
| 1998 | 0 | 11798 | 9740 | 436 |
| 1998.25 | 0 | 7961 | 6511 | 170 |
| 1998.5 | 70657 | 4305 | 3497 | 28 |
| 1998.75 | 46448 | 3138 | 2254 | 30 |
| 1999 | 0 | 26780 | 1885 | 698 |
| 1999.25 | 0 | 18736 | 1465 | 369 |
| 1999.5 | 168621 | 10404 | 822 | 109 |
| 1999.75 | 115273 | 7570 | 546 | 54 |
| 2000 | 0 | 72021 | 5003 | 99 |
| 2000.25 | 0 | 51132 | 3399 | 176 |
| 2000.5 | 51990 | 33172 | 1854 | 41 |
| 2000.75 | 32297 | 24027 | 1275 | 16 |
| 2001 | 0 | 17781 | 13863 | 488 |
| 2001.25 | 0 | 12227 | 9350 | 483 |
| 2001.5 | 55001 | 6721 | 4801 | 71 |
| 2001.75 | 33522 | 4360 | 3417 | 5 |
| 2002 | 0 | 17682 | 2335 | 360 |
| 2002.25 | 0 | 11751 | 1452 | 71 |
| 2002.5 | 42421 | 5816 | 739 | 89 |
| 2002.75 | 23740 | 3741 | 500 | 56 |
| 2003 | 0 | 11629 | 1958 | 330 |
| 2003.25 | 0 | 7935 | 1312 | 201 |
| 2003.5 | 17721 | 4391 | 700 | 31 |
| 2003.75 | 10198 | 2797 | 459 | 77 |
| 2004 | 0 | 5485 | 1681 | 156 |
| 2004.25 | 0 | 4097 | 1266 | 121 |
| 2004.5 | 15439 | 2504 | 708 | 33 |
| 2004.75 | 9277 | 1578 | 461 | 8 |
| 2005 | 0 | 4828 | 830 | 225 |
| 2005.25 | 0 | 3383 | 638 | 230 |
| 2005.5 | 36581 | 1683 | 334 | 72 |
| 2005.75 | 22962 | 1254 | 252 | 213 |
| 2006 | 0 | 13705 | 895 | 335 |
| 2006.25 | 0 | 11399 | 763 | 379 |
| 2006.5 | 34494 | 6947 | 440 | 55 |
| 2006.75 | 19851 | 4818 | 272 | 8 |
| 2007 | 0 | 10600 | 2462 | 42 |
| 2007.25 | 0 | 8060 | 1836 | 10 |
| 2007.5 | 68894 | 4103 | 927 | 43 |
| 2007.75 | 37467 | 3113 | 661 | 145 |
| 2008 | 0 | 19355 | 2168 | 154 |
| 2008.25 | 0 | 13336 | 1741 | 26 |
| 2008.5 | 62415 | 5866 | 849 | 16 |
| 2008.75 | 39362 | 4176 | 582 | 1 |
| 2009 | 0 | 22721 | 2428 | 73 |
| 2009.25 | 0 | 15191 | 1804 | 148 |
| 2009.5 | 91155 | 6888 | 841 | 51 |
| 2009.75 | 55670 | 5214 | 445 | 45 |
| 2010 | 0 | 33459 | 3806 | 75 |
| 2010.25 | 0 | 26264 | 3821 | 108 |
| 2010.5 | 11476 | 14886 | 2258 | 97 |
| 2010.75 | 7065 | 10142 | 1350 | 25 |
| 2011 | 0 | 4019 | 5865 | 342 |
| 2011.25 | 0 | 3148 | 4552 | 120 |
| 2011.5 | 29157 | 1608 | 2231 | 110 |
| 2011.75 | 16302 | 1131 | 1352 | 5 |
| 2012 | 0 | 8393 | 700 | 374 |
| 2012.25 | 0 | 6263 | 609 | 459 |
| 2012.5 | 131854 | 2637 | 291 | 196 |
| 2012.75 | 75588 | 1993 | 213 | 211 |
| 2013 | 0 | 41628 | 1113 | 116 |
| 2013.25 | 0 | 31095 | 965 | 67 |
| 2013.5 | 29689 | 14180 | 503 | 72 |
| 2013.75 | 17588 | 8635 | 280 | 271 |
| 2014 | 0 | 9293 | 3785 | 131 |
| 2014.25 | 0 | 6631 | 2689 | 52 |
| 2014.5 | 128255 | 2494 | 979 | 14 |
| 2014.75 | 81311 | 1769 | 529 | 0 |
| 2015 | 0 | 47007 | 967 | 130 |
| 2015.25 | 0 | 36002 | 766 | 45 |
| 2015.5 | 50449 | 19380 | 413 | 24 |
| 2015.75 | 30717 | 10635 | 217 | 80 |
| 2016 | 0 | 17372 | 4886 | 123 |
| 2016.25 | 0 | 12023 | 3394 | 81 |
| 2016.5 | 105215 | 5177 | 1414 | 10 |
| 2016.75 | 61675 | 2934 | 654 | 0 |
| 2017 | 0 | 33070 | 1367 | 45 |
| 2017.25 | 0 | 21878 | 1044 | 65 |
| 2017.5 | 38156 | 10448 | 555 | 85 |
| 2017.75 | 19783 | 5933 | 277 | 131 |
| 2018 | 0 | 9043 | 2668 | 141 |
| 2018.25 | 0 | 6536 | 1995 | 79 |
| 2018.5 | 85104 | 2933 | 884 | 29 |
| 2018.75 | 48387 | 1779 | 468 | 0 |
| 2019 | 0 | 26398 | 916 | 153 |
| 2019.25 | 0 | 19105 | 752 | 95 |
| 2019.5 | 103696 | 9900 | 356 | 10 |
| 2019.75 | 67798 | 6437 | 169 | 0 |
| 2020 | 0 | 40784 | 3568 | 61 |
| 2020.25 | 0 | 29466 | 2825 | 84 |
| 2020.5 | 82461 | 17072 | 1553 | 17 |
| 2020.75 | 50173 | 10894 | 787 | 43 |
| 2021 | 0 | 28182 | 5460 | 277 |
| 2021.25 | 0 | 19315 | 4000 | 140 |
| 2021.5 | 42889 | 9997 | 1963 | 29 |
| 2021.75 | 24933 | 6544 | 1110 | 115 |
| 2022 | 0 | 13515 | 3404 | 299 |
| 2022.25 | 0 | 9235 | 2335 | 167 |
| 2022.5 | 109237 | 3836 | 1009 | 98 |
| 2022.75 | 55726 | 2566 | 566 | 300 |
| 2023 | 0 | 27390 | 1441 | 175 |
| 2023.25 | 0 | 19998 | 1015 | 33 |
| 2023.5 | 22332 | 8652 | 439 | 46 |
| 2023.75 | 11101 | 4630 | 233 | 90 |
| 2024 | 0 | 5351 | 2350 | 121 |
| 2024.25 | 0 | 3227 | 1529 | 72 |
| 2024.5 | 22524 | 1305 | 618 | 16 |
| 2024.75 | 12932 | 855 | 371 | 87 |
| 2025 | 0 | 7135 | 551 | 238 |
| 2025.25 | 0 | 4908 | 437 | 165 |
| 2025.5 | 65227 | 2092 | 208 | 44 |
| 2025.75 | 36196 | 1299 | 132 | 29 |