Year,Fall_kg_tow,Fall_kg_tow_MA_3,BMSY_half,BMSY_proxy_kg_tow 1960,,,3.23,6.46 1961,,,3.23,6.46 1962,,,3.23,6.46 1963,,,3.23,6.46 1964,,,3.23,6.46 1965,,,3.23,6.46 1966,,,3.23,6.46 1967,2.159,,3.23,6.46 1968,1.865,,3.23,6.46 1969,1.315,1.7797,3.23,6.46 1970,2.996,2.0587,3.23,6.46 1971,1.078,1.7963,3.23,6.46 1972,2.958,2.344,3.23,6.46 1973,4.686,2.9073,3.23,6.46 1974,2.097,3.247,3.23,6.46 1975,1.315,2.6993,3.23,6.46 1976,2.655,2.0223,3.23,6.46 1977,4.095,2.6883,3.23,6.46 1978,4.989,3.913,3.23,6.46 1979,5.121,4.735,3.23,6.46 1980,6.233,5.4477,3.23,6.46 1981,5.668,5.674,3.23,6.46 1982,8.306,6.7357,3.23,6.46 1983,12.852,8.942,3.23,6.46 1984,13.323,11.4937,3.23,6.46 1985,9.182,11.7857,3.23,6.46 1986,15.8,12.7683,3.23,6.46 1987,11.063,12.015,3.23,6.46 1988,7.564,11.4757,3.23,6.46 1989,5.081,7.9027,3.23,6.46 1990,7.145,6.5967,3.23,6.46 1991,4.724,5.65,3.23,6.46 1992,3.582,5.1503,3.23,6.46 1993,1.905,3.4037,3.23,6.46 1994,2.12,2.5357,3.23,6.46 1995,1.985,2.0033,3.23,6.46 1996,2.276,2.127,3.23,6.46 1997,2.455,2.2387,3.23,6.46 1998,3.753,2.828,3.23,6.46 1999,5.089,3.7657,3.23,6.46 2000,4.378,4.4067,3.23,6.46 2001,3.887,4.4513,3.23,6.46 2002,5.6,4.6217,3.23,6.46 2003,3.3865,4.2912,3.23,6.46 2004,4.031,4.3392,3.23,6.46 2005,2.615,3.3442,3.23,6.46 2006,,,3.23,6.46 2007,,,3.23,6.46