| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 26845.7 | 9320.9 | 4737.7 | 1393.0 | 409.6 |
| 1989 | 31478.7 | 12615.4 | 4312.1 | 1393.0 | 409.6 |
| 1990 | 41498.9 | 14771.4 | 5802.6 | 1111.8 | 359.2 |
| 1991 | 35060.5 | 19476.2 | 6798.2 | 1516.2 | 290.5 |
| 1992 | 36492.0 | 16478.2 | 9015.5 | 2026.0 | 451.9 |
| 1993 | 25085.1 | 17161.1 | 7645.9 | 2836.4 | 637.4 |
| 1994 | 35669.2 | 11806.2 | 7988.3 | 2587.2 | 959.8 |
| 1995 | 49043.6 | 16793.8 | 5503.8 | 2795.8 | 905.5 |
| 1996 | 25431.3 | 23065.8 | 7795.0 | 1745.1 | 886.5 |
| 1997 | 29188.0 | 11958.3 | 10697.7 | 2427.2 | 543.4 |
| 1998 | 30654.3 | 13734.7 | 5562.3 | 3559.1 | 807.5 |
| 1999 | 26452.4 | 14407.0 | 6357.3 | 1654.7 | 1058.8 |
| 2000 | 35639.6 | 12442.9 | 6691.5 | 2045.8 | 532.5 |
| 2001 | 45521.3 | 16772.8 | 5790.9 | 2253.7 | 689.0 |
| 2002 | 40912.4 | 21420.4 | 7801.6 | 1925.9 | 749.5 |
| 2003 | 40143.7 | 19246.7 | 9953.2 | 2534.9 | 625.8 |
| 2004 | 31908.4 | 18898.9 | 8969.5 | 3457.1 | 880.5 |
| 2005 | 44127.3 | 15000.6 | 8757.2 | 2736.1 | 1054.6 |
| 2006 | 27295.1 | 20747.4 | 6954.3 | 2701.7 | 844.1 |
| 2007 | 16619.0 | 12823.5 | 9588.8 | 1999.4 | 776.8 |
| 2008 | 8580.2 | 7820.2 | 5964.6 | 3188.2 | 664.8 |
| 2009 | 8863.8 | 4028.8 | 3606.2 | 1630.1 | 871.3 |
| 2010 | 6916.0 | 4159.6 | 1853.6 | 935.6 | 422.9 |
| 2011 | 10574.3 | 3241.8 | 1904.9 | 432.4 | 218.2 |
| 2012 | 9978.7 | 4931.4 | 1454.4 | 278.9 | 63.3 |