| Table 4. Estimated catch scaling factors (same for all ages within each year) | |||
| Year | Catch multiplier | Low | High |
| 1980 | 0.39 | 0.14 | 1.11 |
| 1981 | 0.44 | 0.17 | 1.09 |
| 1982 | 0.47 | 0.21 | 1.06 |
| 1983 | 0.47 | 0.23 | 0.96 |
| 1984 | 0.41 | 0.22 | 0.77 |
| 1985 | 0.59 | 0.34 | 1.03 |
| 1986 | 0.63 | 0.38 | 1.03 |
| 1987 | 0.70 | 0.44 | 1.11 |
| 1988 | 0.46 | 0.30 | 0.72 |
| 1989 | 0.56 | 0.37 | 0.85 |
| 1990 | 0.53 | 0.36 | 0.80 |
| 1991 | 0.59 | 0.40 | 0.87 |
| 1992 | 0.45 | 0.31 | 0.67 |
| 1993 | 0.40 | 0.28 | 0.59 |
| 1994 | 0.35 | 0.24 | 0.50 |
| 1995 | 0.33 | 0.23 | 0.48 |
| 1996 | 0.33 | 0.23 | 0.48 |
| 1997 | 0.29 | 0.20 | 0.43 |
| 1998 | 0.24 | 0.16 | 0.36 |
| 1999 | 0.28 | 0.19 | 0.41 |
| 2000 | 0.23 | 0.16 | 0.35 |
| 2001 | 0.28 | 0.19 | 0.42 |
| 2002 | 0.27 | 0.18 | 0.39 |
| 2003 | 0.39 | 0.27 | 0.56 |
| 2004 | 0.57 | 0.40 | 0.80 |
| 2005 | 0.78 | 0.58 | 1.07 |
| 2006 | 0.83 | 0.66 | 1.06 |