Table 2. Estimated stock numbers. | |||||||
Year\Age | 2 | 3 | 4 | 5 | 6 | 7 | 8+ |
1966 | 387317 | 237756 | 77808 | 20266 | 4174 | 1770 | 168 |
1967 | 376623 | 275130 | 105662 | 29466 | 6218 | 1102 | 515 |
1968 | 339762 | 256530 | 103053 | 31888 | 6959 | 1161 | 296 |
1969 | 303458 | 237044 | 109207 | 35348 | 8783 | 1826 | 378 |
1970 | 254486 | 209190 | 99409 | 37309 | 9186 | 2339 | 593 |
1971 | 268874 | 175431 | 88610 | 33490 | 9984 | 2531 | 813 |
1972 | 330711 | 192336 | 84626 | 34614 | 10658 | 3558 | 1182 |
1973 | 393171 | 235155 | 89949 | 31039 | 10325 | 3544 | 1618 |
1974 | 395142 | 286359 | 115266 | 34166 | 9642 | 3582 | 1819 |
1975 | 321901 | 293021 | 147414 | 46537 | 11429 | 3473 | 1968 |
1976 | 300139 | 235861 | 153891 | 61329 | 16417 | 4200 | 2019 |
1977 | 389648 | 224808 | 124244 | 62193 | 20698 | 5690 | 2177 |
1978 | 674010 | 300439 | 130483 | 55882 | 23110 | 7774 | 2952 |
1979 | 614153 | 519177 | 185907 | 66304 | 23909 | 9908 | 4629 |
1980 | 480220 | 458172 | 313640 | 92503 | 28510 | 10084 | 6065 |
1981 | 600790 | 355400 | 264607 | 144929 | 36388 | 11252 | 6322 |
1982 | 618468 | 456800 | 206489 | 117243 | 53691 | 13260 | 6462 |
1983 | 465096 | 461390 | 263287 | 89680 | 41151 | 18378 | 6692 |
1984 | 328404 | 341124 | 268337 | 119372 | 33490 | 14849 | 9114 |
1985 | 290106 | 236334 | 182408 | 109207 | 39735 | 10760 | 7669 |
1986 | 260928 | 206489 | 125744 | 71826 | 36026 | 12774 | 5914 |
1987 | 296262 | 187775 | 105662 | 45661 | 21007 | 10299 | 5355 |
1988 | 204638 | 210871 | 95320 | 37911 | 13207 | 6086 | 4523 |
1989 | 118777 | 146239 | 106831 | 35348 | 11718 | 4242 | 3390 |
1990 | 103673 | 85391 | 70827 | 35668 | 9718 | 3602 | 2352 |
1991 | 91583 | 70123 | 37049 | 18934 | 6946 | 2340 | 1451 |
1992 | 138690 | 62007 | 27255 | 8844 | 2967 | 1390 | 761 |
1993 | 177904 | 102028 | 32080 | 9829 | 2424 | 927 | 669 |
1994 | 146239 | 137173 | 65644 | 17569 | 4465 | 1224 | 804 |
1995 | 124119 | 108880 | 81552 | 32241 | 7140 | 2017 | 930 |
1996 | 108989 | 91309 | 59278 | 34030 | 10581 | 2794 | 1133 |
1997 | 90039 | 78669 | 45524 | 20752 | 8610 | 3602 | 1352 |
1998 | 127644 | 66370 | 38832 | 15586 | 4934 | 2814 | 1631 |
1999 | 140787 | 94278 | 34996 | 14050 | 3987 | 1715 | 1558 |
2000 | 161943 | 104402 | 50161 | 13495 | 3915 | 1470 | 1219 |
2001 | 135673 | 115844 | 51792 | 16515 | 3327 | 1317 | 899 |
2002 | 119970 | 96278 | 54176 | 15511 | 3648 | 1050 | 702 |
2003 | 111748 | 86769 | 46258 | 16329 | 3543 | 1136 | 549 |
2004 | 103363 | 79937 | 42108 | 13851 | 3684 | 1066 | 510 |
2005 | 123377 | 73497 | 36171 | 11216 | 2574 | 866 | 374 |
2006 | 111636 | 91035 | 37609 | 11914 | 2782 | 741 | 358 |
2007 | 99608 | 81634 | 46258 | 12740 | 2972 | 789 | 312 |
2008 | 104089 | 74384 | 44578 | 17379 | 3750 | 930 | 347 |
2009 | 97734 | 80098 | 44267 | 20331 | 6465 | 1449 | 487 |
2010 | 93901 | 74832 | 48243 | 20453 | 7714 | 2443 | 736 |
2011 | 97929 | 72911 | 44981 | 21901 | 7461 | 2751 | 1138 |
2012 | 78826 | 73939 | 39935 | 17501 | 6297 | 1894 | 994 |
2013 | 71826 | 58630 | 37647 | 13937 | 4368 | 1344 | 608 |