| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 28051.7 | 7109.3 | 4230.3 | 1078.2 | 274.8 |
| 1989 | 27883.2 | 13192.4 | 3337.2 | 1078.2 | 274.8 |
| 1990 | 40729.3 | 13083.4 | 6172.6 | 618.5 | 199.8 |
| 1991 | 34355.3 | 19144.6 | 6136.9 | 1462.6 | 146.5 |
| 1992 | 33112.5 | 16160.8 | 8989.7 | 1617.1 | 385.4 |
| 1993 | 22447.1 | 15590.2 | 7598.3 | 2687.4 | 483.4 |
| 1994 | 34235.0 | 10575.7 | 7337.0 | 2492.8 | 881.6 |
| 1995 | 47756.3 | 16130.1 | 4977.4 | 2421.4 | 822.7 |
| 1996 | 24611.6 | 22478.7 | 7580.9 | 1431.8 | 696.6 |
| 1997 | 26279.0 | 11584.2 | 10564.2 | 2171.0 | 410.0 |
| 1998 | 30549.6 | 12378.1 | 5449.9 | 3352.0 | 688.9 |
| 1999 | 23420.8 | 14378.0 | 5816.6 | 1543.6 | 949.4 |
| 2000 | 37458.1 | 11026.6 | 6759.7 | 1728.2 | 458.6 |
| 2001 | 40810.2 | 17646.7 | 5188.8 | 2195.5 | 561.3 |
| 2002 | 38195.4 | 19219.5 | 8300.0 | 1608.5 | 680.6 |
| 2003 | 40521.1 | 17989.6 | 9040.9 | 2604.2 | 504.7 |
| 2004 | 26261.4 | 19090.3 | 8465.8 | 2951.7 | 850.2 |
| 2005 | 49204.2 | 12359.5 | 8970.6 | 2391.9 | 834.0 |
| 2006 | 24843.1 | 23164.7 | 5810.4 | 2652.1 | 707.1 |
| 2007 | 15504.5 | 11680.0 | 10869.1 | 1420.6 | 648.4 |
| 2008 | 7439.9 | 7304.8 | 5496.8 | 3565.2 | 466.0 |
| 2009 | 7787.1 | 3499.2 | 3429.4 | 1419.7 | 920.8 |
| 2010 | 4696.3 | 3659.9 | 1641.1 | 800.6 | 331.4 |
| 2011 | 11504.4 | 2203.9 | 1712.8 | 311.2 | 151.8 |
| 2012 | 9996.9 | 5363.3 | 1021.8 | 128.5 | 23.4 |