Year,Fall_kg_tow,Fall_kg_tow_MA_3,BMSY_half,BMSY_proxy_kg_tow 1970,,,0.28,0.56 1971,,,0.28,0.56 1972,,,0.28,0.56 1973,,,0.28,0.56 1974,,,0.28,0.56 1975,0.237,,0.28,0.56 1976,0.302,,0.28,0.56 1977,0.768,0.4357,0.28,0.56 1978,0.156,0.4087,0.28,0.56 1979,0.419,0.4477,0.28,0.56 1980,0.685,0.42,0.28,0.56 1981,0.171,0.425,0.28,0.56 1982,0.213,0.3563,0.28,0.56 1983,0.141,0.175,0.28,0.56 1984,0.178,0.1773,0.28,0.56 1985,0.306,0.2083,0.28,0.56 1986,0.545,0.343,0.28,0.56 1987,0.32,0.3903,0.28,0.56 1988,0.335,0.4,0.28,0.56 1989,0.273,0.3093,0.28,0.56 1990,0.402,0.3367,0.28,0.56 1991,0.922,0.5323,0.28,0.56 1992,0.345,0.5563,0.28,0.56 1993,0.495,0.5873,0.28,0.56 1994,0.938,0.5927,0.28,0.56 1995,0.331,0.588,0.28,0.56 1996,0.43,0.5663,0.28,0.56 1997,0.614,0.4583,0.28,0.56 1998,1.121,0.7217,0.28,0.56 1999,1.0529,0.9293,0.28,0.56 2000,1.032,1.0686,0.28,0.56 2001,1.614,1.233,0.28,0.56 2002,0.891,1.179,0.28,0.56 2003,0.6611,1.0554,0.28,0.56 2004,0.709,0.7537,0.28,0.56 2005,0.524,0.6314,0.28,0.56 2006,,,0.28,0.56 2007,,,0.28,0.56