Year per 1,000 male adults 1960 455.421 1961 461.147 1962 463.567 1963 466.265 1964 459.667 1965 437.321 1966 383.452 1967 326.986 1968 316.485 1969 327.676 1970 309.058 1971 321.571 1972 313.816 1973 311.257 1974 306.351 1975 302.379 1976 301.608 1977 297.56 1978 285.182 1979 263.305 1980 263.418 1981 262.958 1982 260.008 1983 259.26 1984 258.809 1985 246.932 1986 290.142 1987 241.303 1988 243.894 1989 268.547 1990 254.605 1991 257.468 1992 262.683 1993 269.199 1994 275.339 1995 278.628 1996 281.979 1997 285.469 1998 294.737 1999 293.358 2000 290.73 2001 289.258 2002 286.927 2003 284.194 2004 286.28 2005 294.372 2006 291.022 2007 287.345 2008 288.313 2009 299.16 2010 300.77 2011 310.826 2012 305.872 2013 293.535 2014 292.851 2015 284.995 2016 283.424 2017 273.377 2018 274.184 2019 273.188 2020 283.596 2021 282.073 2022 269.71