| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 26027.9 | 9140.1 | 4804.5 | 1426.0 | 423.3 |
| 1989 | 30378.0 | 12294.7 | 4232.2 | 1426.0 | 423.3 |
| 1990 | 40358.1 | 14349.6 | 5655.7 | 1077.9 | 363.2 |
| 1991 | 34445.7 | 19063.8 | 6601.0 | 1440.9 | 274.6 |
| 1992 | 33748.9 | 16271.0 | 8821.8 | 1931.1 | 421.5 |
| 1993 | 22804.9 | 15941.9 | 7549.0 | 2741.8 | 600.2 |
| 1994 | 31068.4 | 10772.3 | 7421.2 | 2537.4 | 921.6 |
| 1995 | 41837.8 | 14675.7 | 5018.5 | 2538.6 | 868.0 |
| 1996 | 21463.2 | 19762.8 | 6800.9 | 1517.7 | 767.7 |
| 1997 | 28423.3 | 10138.5 | 9140.6 | 1966.3 | 438.8 |
| 1998 | 30019.3 | 13426.2 | 4702.4 | 2821.3 | 606.9 |
| 1999 | 24618.4 | 14180.1 | 6186.6 | 1245.9 | 747.5 |
| 2000 | 36410.6 | 11628.9 | 6581.7 | 1941.8 | 391.1 |
| 2001 | 50526.4 | 17199.2 | 5411.7 | 2195.4 | 647.7 |
| 2002 | 47179.9 | 23867.0 | 7994.7 | 1757.4 | 712.9 |
| 2003 | 50546.6 | 22286.2 | 11097.1 | 2612.9 | 574.4 |
| 2004 | 43572.2 | 23876.5 | 10404.1 | 3985.3 | 938.4 |
| 2005 | 58464.7 | 20582.1 | 11102.1 | 3404.3 | 1304.0 |
| 2006 | 36303.2 | 27616.8 | 9588.2 | 3794.6 | 1163.6 |
| 2007 | 20026.7 | 17148.4 | 12855.2 | 3217.4 | 1273.3 |
| 2008 | 9503.7 | 9459.9 | 8013.7 | 4726.2 | 1182.9 |
| 2009 | 9291.4 | 4489.2 | 4398.2 | 2614.9 | 1542.1 |
| 2010 | 8426.4 | 4389.0 | 2082.0 | 1354.7 | 805.4 |
| 2011 | 18301.4 | 3980.4 | 2024.2 | 563.5 | 366.7 |
| 2012 | 7804.2 | 8645.0 | 1796.8 | 332.4 | 92.5 |