| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 30424.5 | 7691.2 | 4469.4 | 1204.5 | 324.6 |
| 1989 | 30415.8 | 14315.7 | 3609.7 | 1204.5 | 324.6 |
| 1990 | 44825.0 | 14286.3 | 6699.0 | 753.9 | 251.5 |
| 1991 | 38412.0 | 21085.1 | 6701.5 | 1728.1 | 194.5 |
| 1992 | 35949.2 | 18080.6 | 9901.8 | 1903.5 | 490.8 |
| 1993 | 24751.1 | 16934.3 | 8501.5 | 3137.7 | 603.2 |
| 1994 | 37481.6 | 11666.2 | 7970.3 | 2934.2 | 1083.0 |
| 1995 | 51909.3 | 17666.4 | 5490.8 | 2747.1 | 1011.3 |
| 1996 | 26846.4 | 24447.2 | 8303.8 | 1687.4 | 844.2 |
| 1997 | 29394.3 | 12642.9 | 11490.0 | 2532.2 | 514.6 |
| 1998 | 33606.9 | 13850.9 | 5947.8 | 3811.9 | 840.1 |
| 1999 | 25703.4 | 15825.9 | 6509.3 | 1800.3 | 1153.8 |
| 2000 | 41669.5 | 12108.1 | 7441.6 | 2068.2 | 572.0 |
| 2001 | 44769.0 | 19638.7 | 5698.0 | 2535.9 | 704.8 |
| 2002 | 42211.2 | 21093.7 | 9237.6 | 1865.8 | 830.4 |
| 2003 | 44795.5 | 19890.3 | 9923.5 | 3063.1 | 618.7 |
| 2004 | 30590.6 | 21112.5 | 9360.6 | 3392.2 | 1047.1 |
| 2005 | 53760.5 | 14405.5 | 9922.0 | 2836.2 | 1027.8 |
| 2006 | 28194.4 | 25323.8 | 6773.2 | 3132.0 | 895.3 |
| 2007 | 17281.8 | 13269.1 | 11889.2 | 1881.6 | 870.1 |
| 2008 | 8413.8 | 8145.3 | 6244.9 | 4082.5 | 646.1 |
| 2009 | 11268.9 | 3960.5 | 3825.3 | 1780.6 | 1164.0 |
| 2010 | 8999.5 | 5300.9 | 1857.9 | 989.3 | 460.5 |
| 2011 | 10221.0 | 4228.8 | 2482.3 | 412.2 | 219.5 |
| 2012 | 10084.2 | 4795.8 | 1975.4 | 445.5 | 74.0 |
| 2013 | 26563.3 | 4689.5 | 2207.3 | 97.9 | 22.1 |