| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 19651.7 | 7543.3 | 4261.3 | 1171.6 | 322.1 |
| 1989 | 25547.7 | 9282.8 | 3479.4 | 1171.6 | 322.1 |
| 1990 | 34030.3 | 12067.9 | 4232.6 | 735.6 | 247.7 |
| 1991 | 26894.3 | 16074.8 | 5455.3 | 735.7 | 127.9 |
| 1992 | 28217.6 | 12704.0 | 7379.9 | 1347.9 | 181.8 |
| 1993 | 18483.8 | 13329.1 | 5850.4 | 1956.5 | 357.3 |
| 1994 | 25651.5 | 8731.1 | 6164.2 | 1706.9 | 570.8 |
| 1995 | 35553.4 | 12116.9 | 4046.4 | 1887.0 | 522.5 |
| 1996 | 17926.2 | 16794.2 | 5565.4 | 1010.1 | 471.1 |
| 1997 | 24032.8 | 8467.7 | 7696.0 | 1318.6 | 239.3 |
| 1998 | 24765.1 | 11352.3 | 3898.8 | 2031.3 | 348.0 |
| 1999 | 19315.0 | 11698.2 | 5177.7 | 829.6 | 432.2 |
| 2000 | 27251.0 | 9123.8 | 5393.8 | 1410.9 | 226.1 |
| 2001 | 40108.2 | 12872.5 | 4223.7 | 1610.4 | 421.3 |
| 2002 | 33209.7 | 18945.8 | 5940.9 | 1176.3 | 448.5 |
| 2003 | 37081.6 | 15687.2 | 8729.8 | 1595.1 | 315.8 |
| 2004 | 36216.8 | 17516.1 | 7283.3 | 2785.2 | 508.9 |
| 2005 | 42674.7 | 17107.6 | 8099.6 | 2119.0 | 810.3 |
| 2006 | 30089.7 | 20158.1 | 7925.2 | 2456.7 | 642.7 |
| 2007 | 14268.2 | 14213.4 | 9327.7 | 2342.3 | 726.1 |
| 2008 | 7037.9 | 6739.8 | 6619.0 | 3186.9 | 800.3 |
| 2009 | 9895.5 | 3324.5 | 3117.6 | 1941.1 | 934.6 |
| 2010 | 5868.9 | 4674.3 | 1529.1 | 803.4 | 500.2 |
| 2011 | 14385.9 | 2772.3 | 2125.9 | 305.0 | 160.3 |
| 2012 | 5676.7 | 6795.4 | 1232.1 | 250.9 | 36.0 |