| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1989 | 25958.8 | 10649.2 | 3889.4 | 816.1 | 171.2 |
| 1990 | 38938.0 | 12227.8 | 4941.3 | 816.1 | 171.2 |
| 1991 | 31556.2 | 18338.8 | 5668.1 | 991.3 | 163.7 |
| 1992 | 33544.4 | 14872.7 | 8539.8 | 1399.7 | 244.8 |
| 1993 | 21655.8 | 15818.9 | 6951.2 | 2490.6 | 408.2 |
| 1994 | 28891.5 | 10215.4 | 7406.9 | 2202.3 | 789.1 |
| 1995 | 42573.7 | 13630.4 | 4787.3 | 2440.9 | 725.8 |
| 1996 | 22719.3 | 20074.6 | 6365.8 | 1349.5 | 688.1 |
| 1997 | 25086.3 | 10709.9 | 9359.4 | 1660.2 | 352.0 |
| 1998 | 27707.3 | 11831.3 | 5008.4 | 2799.7 | 496.6 |
| 1999 | 21017.0 | 13061.0 | 5515.5 | 1299.6 | 726.5 |
| 2000 | 33886.1 | 9910.5 | 6101.7 | 1576.2 | 371.4 |
| 2001 | 41168.6 | 15983.7 | 4638.7 | 1901.4 | 491.1 |
| 2002 | 45809.1 | 19414.3 | 7470.2 | 1351.1 | 553.8 |
| 2003 | 51271.0 | 21605.0 | 9079.9 | 2246.3 | 406.3 |
| 2004 | 45822.0 | 24187.9 | 10122.9 | 2966.0 | 733.8 |
| 2005 | 67784.1 | 21612.8 | 11318.4 | 3117.0 | 913.3 |
| 2006 | 47360.2 | 31980.6 | 10131.4 | 3777.4 | 1040.3 |
| 2007 | 29103.6 | 22343.9 | 14988.8 | 3354.2 | 1250.6 |
| 2008 | 13049.8 | 13736.5 | 10500.4 | 5605.7 | 1254.4 |
| 2009 | 14799.4 | 6158.0 | 6446.2 | 3682.3 | 1965.8 |
| 2010 | 16768.0 | 6983.2 | 2888.9 | 2228.7 | 1273.1 |
| 2011 | 15110.5 | 7910.4 | 3271.4 | 936.2 | 722.3 |
| 2012 | 12896.4 | 7122.7 | 3686.8 | 839.9 | 240.4 |
| 2013 | 37907.7 | 6075.7 | 3308.0 | 806.2 | 183.7 |
| 2014 | 10946.0 | 17851.7 | 2814.5 | 644.5 | 157.1 |
| 2015 | 27865.0 | 5128.8 | 8008.2 | 127.4 | 29.2 |