| Table 4c. Stock weight at age in thousand tonnes | |||||
| Year\Age | 0 | 1 | 2 | 3 | 4+ |
| 1988 | 0.0 | 5.3 | 11.7 | 8.4 | 2.7 |
| 1989 | 0.0 | 7.6 | 10.2 | 5.6 | 2.7 |
| 1990 | 0.0 | 8.7 | 14.6 | 3.6 | 1.3 |
| 1991 | 0.0 | 12.4 | 16.6 | 5.3 | 0.8 |
| 1992 | 0.0 | 10.4 | 24.0 | 7.7 | 1.6 |
| 1993 | 0.0 | 10.9 | 20.2 | 12.8 | 2.8 |
| 1994 | 0.0 | 7.5 | 21.1 | 12.1 | 5.3 |
| 1995 | 0.0 | 10.0 | 14.6 | 13.2 | 5.3 |
| 1996 | 0.0 | 13.8 | 19.5 | 7.9 | 4.9 |
| 1997 | 0.0 | 7.4 | 26.8 | 9.8 | 2.7 |
| 1998 | 0.0 | 8.2 | 14.4 | 15.0 | 3.8 |
| 1999 | 0.0 | 8.9 | 15.9 | 6.9 | 4.9 |
| 2000 | 0.0 | 6.9 | 17.1 | 8.4 | 2.5 |
| 2001 | 0.0 | 10.6 | 13.4 | 9.9 | 3.4 |
| 2002 | 0.0 | 13.1 | 20.5 | 7.3 | 3.7 |
| 2003 | 0.0 | 12.6 | 25.4 | 11.2 | 2.7 |
| 2004 | 0.0 | 13.3 | 24.5 | 15.4 | 4.7 |
| 2005 | 0.0 | 12.7 | 25.8 | 12.9 | 5.5 |
| 2006 | 0.0 | 15.6 | 24.7 | 14.4 | 4.9 |
| 2007 | 0.0 | 12.3 | 30.3 | 13.9 | 5.6 |
| 2008 | 0.0 | 7.7 | 23.8 | 19.2 | 6.2 |
| 2009 | 0.0 | 3.9 | 15.0 | 13.9 | 7.8 |
| 2010 | 0.0 | 4.7 | 7.6 | 8.6 | 5.5 |
| 2011 | 0.0 | 5.8 | 9.2 | 4.1 | 3.2 |
| 2012 | 0.0 | 5.3 | 11.1 | 4.1 | 1.2 |
| 2013 | 0.0 | 4.8 | 10.1 | 4.5 | 1.1 |
| 2014 | 0.0 | 16.2 | 9.2 | 3.9 | 1.1 |
| 2015 | 0.0 | 2.5 | 30.3 | 1.2 | 0.3 |