| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1989 | 25924.2 | 10649.9 | 3887.0 | 814.5 | 170.7 |
| 1990 | 38917.4 | 12211.2 | 4942.5 | 814.5 | 170.7 |
| 1991 | 31538.9 | 18328.6 | 5661.7 | 990.9 | 163.3 |
| 1992 | 33524.2 | 14864.3 | 8536.3 | 1396.1 | 244.3 |
| 1993 | 21641.3 | 15809.2 | 6948.1 | 2488.2 | 406.9 |
| 1994 | 28875.0 | 10208.4 | 7403.1 | 2200.4 | 788.0 |
| 1995 | 42559.4 | 13622.5 | 4784.5 | 2438.7 | 724.9 |
| 1996 | 22723.1 | 20067.6 | 6362.9 | 1347.8 | 687.0 |
| 1997 | 25063.2 | 10711.5 | 9357.5 | 1658.1 | 351.2 |
| 1998 | 27700.4 | 11820.2 | 5009.7 | 2798.1 | 495.8 |
| 1999 | 21006.8 | 13057.5 | 5511.2 | 1299.6 | 725.9 |
| 2000 | 33892.0 | 9905.6 | 6100.8 | 1573.9 | 371.1 |
| 2001 | 41113.6 | 15986.3 | 4636.9 | 1900.5 | 490.3 |
| 2002 | 45827.6 | 19388.1 | 7472.4 | 1349.9 | 553.3 |
| 2003 | 51293.7 | 21613.5 | 9068.8 | 2246.6 | 405.9 |
| 2004 | 45792.4 | 24198.3 | 10127.8 | 2960.5 | 733.4 |
| 2005 | 67853.4 | 21598.6 | 11324.6 | 3118.0 | 911.4 |
| 2006 | 47339.1 | 32013.0 | 10125.7 | 3779.6 | 1040.6 |
| 2007 | 29085.6 | 22333.8 | 15005.4 | 3351.4 | 1251.0 |
| 2008 | 13036.9 | 13727.9 | 10496.3 | 5612.5 | 1253.5 |
| 2009 | 14788.2 | 6151.8 | 6442.8 | 3680.7 | 1968.1 |
| 2010 | 16763.6 | 6977.9 | 2886.3 | 2227.1 | 1272.3 |
| 2011 | 15102.5 | 7908.2 | 3269.2 | 934.9 | 721.4 |
| 2012 | 12962.3 | 7118.8 | 3686.3 | 838.5 | 239.8 |
| 2013 | 39020.9 | 6106.6 | 3306.8 | 805.4 | 183.2 |
| 2014 | 10995.6 | 18375.4 | 2829.5 | 643.6 | 156.8 |
| 2015 | 27898.6 | 5152.3 | 8253.6 | 131.7 | 30.0 |