| Table 4. Estimated catch scaling factors (same for all ages within each year) | |||
| Year | Catch multiplier | Low | High |
| 1993 | 1.05 | 0.85 | 1.30 |
| 1994 | 1.32 | 0.99 | 1.76 |
| 1995 | 1.72 | 1.23 | 2.41 |
| 1996 | 1.56 | 1.09 | 2.25 |
| 1997 | 1.50 | 1.03 | 2.19 |
| 1998 | 1.25 | 0.86 | 1.82 |
| 1999 | 1.27 | 0.88 | 1.84 |
| 2000 | 1.41 | 0.99 | 2.00 |
| 2001 | 2.02 | 1.43 | 2.86 |
| 2002 | 1.47 | 1.04 | 2.07 |
| 2003 | 2.56 | 1.80 | 3.63 |
| 2004 | 2.07 | 1.46 | 2.93 |
| 2005 | 1.90 | 1.34 | 2.69 |
| 2006 | 2.04 | 1.44 | 2.88 |
| 2007 | 2.24 | 1.58 | 3.16 |
| 2008 | 2.04 | 1.44 | 2.89 |
| 2009 | 2.06 | 1.45 | 2.92 |
| 2010 | 2.45 | 1.73 | 3.47 |
| 2011 | 3.17 | 2.23 | 4.49 |
| 2012 | 3.52 | 2.47 | 5.01 |
| 2013 | 3.68 | 2.57 | 5.27 |