| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 21295.5 | 6974.6 | 3717.2 | 1377.4 | 307.8 |
| 1989 | 24257.3 | 10059.2 | 3245.2 | 923.9 | 307.8 |
| 1990 | 34800.7 | 11458.2 | 4645.5 | 586.2 | 142.4 |
| 1991 | 29208.5 | 16438.6 | 5295.7 | 867.6 | 93.9 |
| 1992 | 30447.1 | 13797.1 | 7639.7 | 1251.9 | 182.9 |
| 1993 | 20995.2 | 14382.1 | 6434.9 | 2101.1 | 314.8 |
| 1994 | 28095.6 | 9917.4 | 6725.3 | 1977.2 | 601.2 |
| 1995 | 38705.7 | 13271.4 | 4642.1 | 2154.3 | 593.9 |
| 1996 | 20739.8 | 18283.2 | 6192.2 | 1298.0 | 552.3 |
| 1997 | 22954.5 | 9796.7 | 8515.8 | 1608.3 | 305.4 |
| 1998 | 24761.8 | 10842.9 | 4574.0 | 2449.5 | 426.2 |
| 1999 | 19327.6 | 11696.6 | 5045.0 | 1135.7 | 546.8 |
| 2000 | 29542.2 | 9129.7 | 5454.2 | 1376.0 | 282.9 |
| 2001 | 36691.1 | 13954.7 | 4265.8 | 1620.9 | 378.8 |
| 2002 | 35239.3 | 17331.6 | 6511.3 | 1195.5 | 416.7 |
| 2003 | 37237.5 | 16645.8 | 8087.9 | 1833.6 | 309.0 |
| 2004 | 35613.6 | 17589.7 | 7786.2 | 2518.1 | 532.8 |
| 2005 | 43741.0 | 16822.6 | 8200.5 | 2104.5 | 620.5 |
| 2006 | 34267.4 | 20661.7 | 7854.2 | 2357.1 | 557.2 |
| 2007 | 21649.0 | 16186.7 | 9647.5 | 2266.9 | 627.0 |
| 2008 | 10972.4 | 10226.3 | 7579.9 | 3148.4 | 695.9 |
| 2009 | 13270.7 | 5183.0 | 4779.0 | 2267.7 | 873.4 |
| 2010 | 16102.0 | 6268.6 | 2421.5 | 1415.2 | 621.6 |
| 2011 | 14752.0 | 7606.0 | 2925.0 | 678.5 | 363.7 |
| 2012 | 13438.4 | 6968.3 | 3532.4 | 671.4 | 138.2 |
| 2013 | 45272.4 | 6347.8 | 3229.7 | 744.4 | 123.8 |
| 2014 | 7048.3 | 21385.0 | 2936.9 | 631.1 | 125.7 |
| 2015 | 22881.5 | 3329.3 | 9639.9 | 189.6 | 29.3 |