Table 2. Estimated stock numbers. | ||||||
Year\Age | 1 | 2 | 3 | 4 | 5 | 6+ |
1971 | 20472 | 28970 | 14800 | 4597 | 2173 | 604 |
1972 | 15537 | 16404 | 17897 | 6604 | 1907 | 1158 |
1973 | 16044 | 12565 | 10351 | 8156 | 2587 | 1226 |
1974 | 26265 | 13034 | 9483 | 5105 | 2507 | 1129 |
1975 | 24736 | 21453 | 8039 | 4555 | 1523 | 1087 |
1976 | 12248 | 20307 | 14132 | 3373 | 1531 | 862 |
1977 | 26876 | 9616 | 12971 | 5987 | 997 | 745 |
1978 | 20950 | 22675 | 5779 | 5182 | 1692 | 495 |
1979 | 10397 | 17165 | 14386 | 2233 | 1713 | 692 |
1980 | 13444 | 8230 | 10976 | 6060 | 736 | 817 |
1981 | 16010 | 10834 | 5098 | 4473 | 1991 | 498 |
1982 | 19189 | 12905 | 6086 | 1949 | 1196 | 691 |
1983 | 16642 | 15572 | 7417 | 1971 | 444 | 445 |
1984 | 10442 | 13530 | 8476 | 2352 | 481 | 224 |
1985 | 8043 | 8481 | 7364 | 2501 | 556 | 164 |
1986 | 15856 | 6449 | 4446 | 1952 | 542 | 161 |
1987 | 5441 | 13183 | 3411 | 1248 | 404 | 146 |
1988 | 6055 | 4349 | 6249 | 990 | 270 | 115 |
1989 | 3346 | 4936 | 2218 | 1883 | 249 | 100 |
1990 | 13107 | 2620 | 2239 | 636 | 429 | 78 |
1991 | 6517 | 10973 | 1229 | 567 | 129 | 102 |
1992 | 10078 | 5271 | 5629 | 321 | 101 | 41 |
1993 | 6490 | 8324 | 2828 | 1929 | 70 | 32 |
1994 | 7655 | 5308 | 4880 | 1099 | 555 | 28 |
1995 | 13838 | 6134 | 3253 | 1811 | 347 | 181 |
1996 | 4407 | 11618 | 3760 | 1174 | 471 | 139 |
1997 | 10075 | 3564 | 7696 | 1297 | 312 | 161 |
1998 | 7409 | 8471 | 2244 | 2437 | 319 | 114 |
1999 | 6742 | 5948 | 5071 | 643 | 547 | 97 |
2000 | 2745 | 5348 | 3334 | 1309 | 144 | 142 |
2001 | 1781 | 2183 | 2844 | 772 | 260 | 58 |
2002 | 2975 | 1470 | 1142 | 647 | 140 | 59 |
2003 | 795 | 2452 | 812 | 286 | 141 | 42 |
2004 | 2854 | 622 | 1349 | 234 | 80 | 52 |
2005 | 1200 | 2348 | 344 | 411 | 59 | 33 |
2006 | 1192 | 956 | 1407 | 120 | 135 | 31 |
2007 | 520 | 918 | 586 | 527 | 48 | 68 |
2008 | 447 | 402 | 503 | 216 | 144 | 33 |
2009 | 2056 | 350 | 215 | 177 | 55 | 43 |
2010 | 1147 | 1742 | 191 | 75 | 45 | 25 |
2011 | 1407 | 915 | 954 | 69 | 19 | 18 |
2012 | 2171 | 1124 | 468 | 349 | 17 | 9 |