Year per 1,000 male adults 1960 504.472 1961 503.065 1962 501.085 1963 500.437 1964 499.296 1965 498.791 1966 498.144 1967 496.802 1968 497.842 1969 499.345 1970 499.972 1971 511.8 1972 499.329 1973 498.191 1974 491.713 1975 483.986 1976 473.094 1977 460.152 1978 442.39 1979 426.932 1980 411.654 1981 395.358 1982 386.495 1983 376.777 1984 374.764 1985 368.408 1986 360.62 1987 353.542 1988 346.037 1989 342.44 1990 336.77 1991 337.337 1992 333.79 1993 328.315 1994 326.924 1995 317.089 1996 315.047 1997 312.953 1998 313.524 1999 313.29 2000 312.371 2001 314.259 2002 312.844 2003 305.818 2004 301.378 2005 295.811 2006 290.549 2007 285.945 2008 279.829 2009 273.62 2010 266.331 2011 263.941 2012 257.051 2013 254.589 2014 250.698 2015 256.035 2016 248.855 2017 243.116 2018 239.18 2019 238.442 2020 269.44 2021 274.319 2022 269.6