| Table 4. Estimated catch scaling factors (same for all ages within each year) | |||
| Year | Catch multiplier | Low | High |
| 1980 | 1.01 | 0.36 | 2.83 |
| 1981 | 1.12 | 0.45 | 2.78 |
| 1982 | 1.21 | 0.54 | 2.69 |
| 1983 | 1.20 | 0.60 | 2.40 |
| 1984 | 1.05 | 0.57 | 1.91 |
| 1985 | 1.48 | 0.88 | 2.50 |
| 1986 | 1.56 | 0.98 | 2.48 |
| 1987 | 1.71 | 1.12 | 2.60 |
| 1988 | 1.14 | 0.78 | 1.67 |
| 1989 | 1.37 | 0.96 | 1.96 |
| 1990 | 1.31 | 0.94 | 1.83 |
| 1991 | 1.41 | 1.03 | 1.93 |
| 1992 | 1.07 | 0.79 | 1.44 |
| 1993 | 0.95 | 0.72 | 1.27 |
| 1994 | 0.84 | 0.64 | 1.12 |
| 1995 | 0.84 | 0.64 | 1.11 |
| 1996 | 0.90 | 0.68 | 1.18 |
| 1997 | 0.85 | 0.65 | 1.10 |
| 1998 | 0.79 | 0.61 | 1.02 |
| 1999 | 1.01 | 0.81 | 1.24 |