| Table 3. Estimates of stock size | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 21824.1 | 7520.2 | 3786.2 | 1366.0 | 307.3 |
| 1989 | 25034.9 | 10308.9 | 3480.5 | 980.5 | 307.3 |
| 1990 | 34427.5 | 11825.6 | 4734.1 | 716.7 | 166.2 |
| 1991 | 29304.8 | 16262.2 | 5430.3 | 973.2 | 121.2 |
| 1992 | 30540.7 | 13842.5 | 7518.6 | 1363.7 | 210.8 |
| 1993 | 21535.3 | 14426.3 | 6423.3 | 2102.1 | 337.2 |
| 1994 | 28807.2 | 10172.5 | 6719.5 | 2006.6 | 596.0 |
| 1995 | 38847.0 | 13607.5 | 4745.1 | 2191.7 | 600.1 |
| 1996 | 21467.3 | 18349.9 | 6322.8 | 1380.9 | 569.4 |
| 1997 | 23429.9 | 10140.4 | 8507.5 | 1723.5 | 330.9 |
| 1998 | 24997.0 | 11067.4 | 4713.8 | 2507.3 | 454.8 |
| 1999 | 20673.3 | 11807.7 | 5124.0 | 1233.2 | 571.1 |
| 2000 | 29728.7 | 9765.3 | 5481.9 | 1454.4 | 310.6 |
| 2001 | 37544.1 | 14042.8 | 4544.7 | 1671.0 | 400.1 |
| 2002 | 36189.5 | 17734.5 | 6529.0 | 1346.1 | 443.7 |
| 2003 | 37803.3 | 17094.6 | 8241.0 | 1903.6 | 350.5 |
| 2004 | 36546.2 | 17856.9 | 7968.8 | 2637.2 | 556.1 |
| 2005 | 42137.6 | 17263.1 | 8287.9 | 2242.2 | 657.2 |
| 2006 | 33096.4 | 19904.3 | 8026.3 | 2455.3 | 595.5 |
| 2007 | 21151.6 | 15633.5 | 9258.0 | 2406.2 | 661.7 |
| 2008 | 11174.0 | 9991.3 | 7293.6 | 3034.1 | 723.8 |
| 2009 | 13499.6 | 5278.2 | 4646.9 | 2182.0 | 815.6 |
| 2010 | 16130.9 | 6376.8 | 2454.3 | 1381.1 | 581.8 |
| 2011 | 14847.5 | 7619.7 | 2961.5 | 703.9 | 352.4 |
| 2012 | 14078.4 | 7013.4 | 3518.1 | 714.5 | 145.1 |
| 2013 | 39576.3 | 6650.1 | 3228.4 | 777.2 | 132.1 |
| 2014 | 6840.4 | 18694.4 | 3054.4 | 668.2 | 132.6 |
| 2015 | 23995.6 | 3231.1 | 8339.0 | 267.3 | 39.4 |