| Table 2. Estimated stock numbers. | ||||
| Time\Age | 0 | 1 | 2 | 3 | 
| 1984 | 0 | 45384 | 9803 | 599 | 
| 1984.25 | 0 | 31054 | 5431 | 344 | 
| 1984.5 | 39812 | 21471 | 3183 | 199 | 
| 1984.75 | 0 | 12157 | 1365 | 115 | 
| 1985 | 0 | 21747 | 6021 | 592 | 
| 1985.25 | 0 | 14765 | 2828 | 326 | 
| 1985.5 | 28815 | 10468 | 1608 | 191 | 
| 1985.75 | 0 | 6186 | 658 | 109 | 
| 1986 | 0 | 15315 | 3106 | 300 | 
| 1986.25 | 0 | 10485 | 1599 | 172 | 
| 1986.5 | 48424 | 7633 | 977 | 105 | 
| 1986.75 | 0 | 4864 | 486 | 63 | 
| 1987 | 0 | 28180 | 2691 | 265 | 
| 1987.25 | 0 | 20450 | 1409 | 151 | 
| 1987.5 | 9968 | 15173 | 862 | 93 | 
| 1987.75 | 0 | 10201 | 451 | 57 | 
| 1988 | 0 | 5067 | 5704 | 216 | 
| 1988.25 | 0 | 3899 | 3396 | 122 | 
| 1988.5 | 45717 | 3091 | 2309 | 74 | 
| 1988.75 | 0 | 2311 | 1423 | 45 | 
| 1989 | 0 | 25293 | 1497 | 781 | 
| 1989.25 | 0 | 18433 | 985 | 491 | 
| 1989.5 | 47209 | 13479 | 656 | 311 | 
| 1989.75 | 0 | 9051 | 379 | 200 | 
| 1990 | 0 | 25418 | 5512 | 340 | 
| 1990.25 | 0 | 18744 | 3240 | 208 | 
| 1990.5 | 58273 | 13492 | 1914 | 128 | 
| 1990.75 | 0 | 9338 | 1097 | 80 | 
| 1991 | 0 | 31852 | 6058 | 655 | 
| 1991.25 | 0 | 23068 | 3540 | 381 | 
| 1991.5 | 103215 | 17179 | 2176 | 225 | 
| 1991.75 | 0 | 12080 | 1232 | 142 | 
| 1992 | 0 | 57472 | 8166 | 761 | 
| 1992.25 | 0 | 41421 | 5105 | 505 | 
| 1992.5 | 54466 | 30262 | 3432 | 341 | 
| 1992.75 | 0 | 20114 | 2076 | 215 | 
| 1993 | 0 | 29313 | 12715 | 1387 | 
| 1993.25 | 0 | 20419 | 7237 | 871 | 
| 1993.5 | 47182 | 14279 | 4327 | 552 | 
| 1993.75 | 0 | 8980 | 2227 | 338 | 
| 1994 | 0 | 24633 | 5445 | 1300 | 
| 1994.25 | 0 | 17152 | 3285 | 772 | 
| 1994.5 | 134883 | 12238 | 2067 | 465 | 
| 1994.75 | 0 | 8372 | 1209 | 286 | 
| 1995 | 0 | 75502 | 5599 | 926 | 
| 1995.25 | 0 | 55723 | 3554 | 627 | 
| 1995.5 | 52789 | 40797 | 2285 | 425 | 
| 1995.75 | 0 | 28031 | 1397 | 272 | 
| 1996 | 0 | 26693 | 18538 | 1069 | 
| 1996.25 | 0 | 19975 | 11542 | 685 | 
| 1996.5 | 112542 | 14730 | 7528 | 439 | 
| 1996.75 | 0 | 10505 | 4617 | 275 | 
| 1997 | 0 | 63442 | 7522 | 3134 | 
| 1997.25 | 0 | 46315 | 4851 | 2005 | 
| 1997.5 | 22072 | 36110 | 3189 | 1282 | 
| 1997.75 | 0 | 25836 | 1894 | 815 | 
| 1998 | 0 | 12315 | 18320 | 1671 | 
| 1998.25 | 0 | 9245 | 11467 | 1028 | 
| 1998.5 | 40127 | 6840 | 7289 | 631 | 
| 1998.75 | 0 | 5145 | 4475 | 403 | 
| 1999 | 0 | 23620 | 3738 | 3071 | 
| 1999.25 | 0 | 18104 | 2557 | 1959 | 
| 1999.5 | 94296 | 13786 | 1688 | 1237 | 
| 1999.75 | 0 | 10255 | 1005 | 774 | 
| 2000 | 0 | 55925 | 7498 | 1053 | 
| 2000.25 | 0 | 42899 | 5155 | 657 | 
| 2000.5 | 26134 | 33709 | 3514 | 407 | 
| 2000.75 | 0 | 24305 | 2253 | 261 | 
| 2001 | 0 | 14015 | 15994 | 1523 | 
| 2001.25 | 0 | 10099 | 9922 | 978 | 
| 2001.5 | 25852 | 7273 | 6251 | 624 | 
| 2001.75 | 0 | 5287 | 4180 | 399 | 
| 2002 | 0 | 15128 | 3644 | 2837 | 
| 2002.25 | 0 | 11291 | 2303 | 1747 | 
| 2002.5 | 21208 | 8125 | 1520 | 1086 | 
| 2002.75 | 0 | 5536 | 951 | 685 | 
| 2003 | 0 | 10805 | 3548 | 956 | 
| 2003.25 | 0 | 7454 | 2257 | 578 | 
| 2003.5 | 8318 | 5126 | 1435 | 348 | 
| 2003.75 | 0 | 3462 | 846 | 219 | 
| 2004 | 0 | 4581 | 2378 | 590 | 
| 2004.25 | 0 | 3276 | 1572 | 375 | 
| 2004.5 | 7842 | 2472 | 1051 | 239 | 
| 2004.75 | 0 | 1728 | 653 | 152 | 
| 2005 | 0 | 4411 | 1160 | 475 | 
| 2005.25 | 0 | 3241 | 804 | 318 | 
| 2005.5 | 31330 | 2409 | 555 | 211 | 
| 2005.75 | 0 | 1833 | 377 | 138 | 
| 2006 | 0 | 17730 | 1435 | 339 | 
| 2006.25 | 0 | 12989 | 1035 | 224 | 
| 2006.5 | 22254 | 9723 | 724 | 146 | 
| 2006.75 | 0 | 7248 | 463 | 94 | 
| 2007 | 0 | 12482 | 4821 | 326 | 
| 2007.25 | 0 | 9244 | 3157 | 225 | 
| 2007.5 | 32640 | 6778 | 2059 | 156 | 
| 2007.75 | 0 | 5008 | 1345 | 101 | 
| 2008 | 0 | 18794 | 3855 | 977 | 
| 2008.25 | 0 | 14409 | 2716 | 635 | 
| 2008.5 | 48344 | 11027 | 1865 | 414 | 
| 2008.75 | 0 | 8582 | 1218 | 260 | 
| 2009 | 0 | 31051 | 6361 | 959 | 
| 2009.25 | 0 | 23602 | 4327 | 601 | 
| 2009.5 | 71678 | 18487 | 2900 | 374 | 
| 2009.75 | 0 | 14199 | 1765 | 238 | 
| 2010 | 0 | 43105 | 11122 | 1278 | 
| 2010.25 | 0 | 34317 | 8515 | 826 | 
| 2010.5 | 6393 | 25766 | 5956 | 527 | 
| 2010.75 | 0 | 18201 | 3866 | 335 | 
| 2011 | 0 | 3709 | 12594 | 2678 | 
| 2011.25 | 0 | 2786 | 8017 | 1677 | 
| 2011.5 | 11013 | 2193 | 5437 | 1060 | 
| 2011.75 | 0 | 1665 | 3622 | 676 | 
| 2012 | 0 | 6415 | 1274 | 2930 | 
| 2012.25 | 0 | 4870 | 887 | 1953 | 
| 2012.5 | 56604 | 3793 | 632 | 1303 | 
| 2012.75 | 0 | 3021 | 442 | 857 | 
| 2013 | 0 | 32743 | 2180 | 836 | 
| 2013.25 | 0 | 24912 | 1565 | 535 | 
| 2013.5 | 16503 | 17848 | 1083 | 340 | 
| 2013.75 | 0 | 12263 | 685 | 217 | 
| 2014 | 0 | 9067 | 7658 | 506 | 
| 2014.25 | 0 | 6640 | 4778 | 317 | 
| 2014.5 | 95396 | 4871 | 2953 | 198 | 
| 2014.75 | 0 | 3598 | 1747 | 122 | 
| 2015 | 0 | 51439 | 2456 | 1072 | 
| 2015.25 | 0 | 36123 | 1597 | 688 | 
| 2015.5 | 35676 | 24933 | 1027 | 439 | 
| 2015.75 | 0 | 15880 | 578 | 272 | 
| 2016 | 0 | 18953 | 9811 | 485 | 
| 2016.25 | 0 | 13112 | 6207 | 308 | 
| 2016.5 | 61891 | 8765 | 3816 | 192 | 
| 2016.75 | 0 | 5420 | 2217 | 118 | 
| 2017 | 0 | 32930 | 3209 | 1310 | 
| 2017.25 | 0 | 22313 | 2074 | 830 | 
| 2017.5 | 20571 | 15124 | 1337 | 520 | 
| 2017.75 | 0 | 9746 | 796 | 328 | 
| 2018 | 0 | 10332 | 6050 | 660 | 
| 2018.25 | 0 | 7396 | 3721 | 397 | 
| 2018.5 | 74555 | 5190 | 2233 | 235 | 
| 2018.75 | 0 | 3714 | 1293 | 144 | 
| 2019 | 0 | 40041 | 2512 | 759 | 
| 2019.25 | 0 | 29146 | 1755 | 479 | 
| 2019.5 | 97153 | 20819 | 1114 | 294 | 
| 2019.75 | 0 | 14762 | 667 | 181 | 
| 2020 | 0 | 54279 | 9817 | 507 | 
| 2020.25 | 0 | 39154 | 6397 | 324 | 
| 2020.5 | 61815 | 28333 | 4003 | 203 | 
| 2020.75 | 0 | 19601 | 2363 | 128 | 
| 2021 | 0 | 32163 | 12548 | 1411 | 
| 2021.25 | 0 | 22613 | 7853 | 915 | 
| 2021.5 | 25844 | 15621 | 4723 | 584 | 
| 2021.75 | 0 | 10321 | 2846 | 370 | 
| 2022 | 0 | 13832 | 6347 | 1776 | 
| 2022.25 | 0 | 10845 | 3949 | 1147 | 
| 2022.5 | 76633 | 8340 | 2500 | 733 | 
| 2022.75 | 0 | 6083 | 1594 | 466 | 
| 2023 | 0 | 42603 | 4032 | 1194 | 
| 2023.25 | 0 | 31851 | 2721 | 768 | 
| 2023.5 | 76633 | 23583 | 1793 | 489 | 
| 2023.75 | 0 | 17199 | 1143 | 311 |