| Table 1a. Estimated and observed catch. | ||||
| Year | catch | Low | Hig | catch_obs |
| 1961 | 8918 | 6979 | 11395 | 9592 |
| 1962 | 10994 | 8850 | 13658 | 10454 |
| 1963 | 13865 | 11258 | 17076 | 12693 |
| 1964 | 19117 | 15403 | 23727 | 21893 |
| 1965 | 23979 | 19223 | 29913 | 22181 |
| 1966 | 24979 | 19979 | 31230 | 25563 |
| 1967 | 20296 | 16163 | 25484 | 21319 |
| 1968 | 21422 | 17230 | 26635 | 20387 |
| 1969 | 26491 | 21242 | 33038 | 27437 |
| 1970 | 27659 | 22075 | 34655 | 29110 |
| 1971 | 28534 | 22594 | 36035 | 32706 |
| 1972 | 40145 | 31989 | 50380 | 42663 |
| 1973 | 49114 | 39124 | 61655 | 57431 |
| 1974 | 46420 | 36908 | 58385 | 47188 |
| 1975 | 41511 | 33131 | 52010 | 41576 |
| 1976 | 34191 | 27426 | 42626 | 33065 |
| 1977 | 31903 | 25801 | 39448 | 34835 |
| 1978 | 29045 | 23533 | 35847 | 28138 |
| 1979 | 25734 | 21060 | 31446 | 27246 |
| 1980 | 27294 | 22339 | 33348 | 25230 |
| 1981 | 28120 | 22983 | 34404 | 30103 |
| 1982 | 28601 | 23127 | 35372 | 30964 |
| 1983 | 36259 | 28207 | 46611 | 39176 |
| 1984 | 40624 | 31154 | 52973 | 54665 |
| 1985 | 45368 | 34712 | 59295 | 44605 |
| 1986 | 44040 | 34096 | 56885 | 41716 |
| 1987 | 41684 | 32303 | 53789 | 40020 |
| 1988 | 41662 | 31457 | 55177 | 45285 |
| 1989 | 43527 | 32758 | 57837 | 44477 |
| 1990 | 49186 | 37332 | 64803 | 61628 |
| 1991 | 49498 | 38103 | 64301 | 54858 |
| 1992 | 37553 | 29515 | 47779 | 36487 |
| 1993 | 33061 | 25787 | 42387 | 33543 |
| 1994 | 29964 | 23570 | 38094 | 33182 |
| 1995 | 28362 | 22212 | 36215 | 27209 |
| 1996 | 19395 | 15367 | 24479 | 20029 |
| 1997 | 19708 | 15727 | 24695 | 22306 |
| 1998 | 24519 | 19239 | 31247 | 26421 |
| 1999 | 30313 | 23633 | 38881 | 33207 |
| 2000 | 34487 | 27100 | 43889 | 39020 |
| 2001 | 48987 | 38519 | 62299 | 51786 |
| 2002 | 45270 | 35238 | 58159 | 53546 |
| 2003 | 44882 | 34819 | 57853 | 46555 |
| 2004 | 55041 | 42225 | 71745 | 46355 |
| 2005 | 62933 | 47833 | 82799 | 67967 |
| 2006 | 66991 | 52169 | 86023 | 68465 |
| 2007 | 59162 | 46661 | 75010 | 62351 |
| 2008 | 53977 | 42665 | 68286 | 59243 |
| 2009 | 50272 | 39900 | 63339 | 59558 |
| 2010 | 42130 | 33575 | 52865 | 45441 |
| 2011 | 31421 | 25252 | 39096 | 30084 |
| 2012 | 31462 | 24875 | 39794 | 35448 |
| 2013 | 29705 | 23052 | 38278 | 26539 |
| 2014 | 28955 | 22373 | 37474 | 24103 |
| 2015 | 31113 | 24178 | 40038 | 25900 |
| 2016 | 26770 | 20488 | 34979 | 29671 |
| 2017 | 27733 | 20688 | 37176 | 30853 |
| 2018 | 27739 | 20343 | 37824 | 24119 |