Year per 1,000 male adults 1960 454.167 1961 464.392 1962 461.331 1963 460.524 1964 458.087 1965 456.145 1966 455.243 1967 452.991 1968 445.754 1969 440.834 1970 433.756 1971 427.483 1972 420.899 1973 414.562 1974 405.952 1975 403.509 1976 401.623 1977 398.804 1978 394.375 1979 390.54 1980 387.707 1981 386.843 1982 389.47 1983 388.501 1984 392.075 1985 400.916 1986 412.009 1987 425.966 1988 445.846 1989 458.902 1990 473.802 1991 493.653 1992 510.564 1993 530.1 1994 542.11 1995 555.528 1996 567.422 1997 583.905 1998 603.88 1999 593.222 2000 583.218 2001 570.035 2002 558.529 2003 542.796 2004 521.423 2005 501.302 2006 483.72 2007 472.482 2008 460.522 2009 451.467 2010 441.805 2011 435.591 2012 422.928 2013 417.766 2014 414.236 2015 408.396 2016 400.549 2017 393.318 2018 392.518 2019 378.171 2020 384.223 2021 395.225 2022 393.686