Year per 1,000 male adults 1960 469.815 1961 468.091 1962 465.423 1963 463.618 1964 459.648 1965 456.012 1966 451.465 1967 445.9 1968 442.831 1969 441.828 1970 433.83 1971 429.928 1972 425.221 1973 420.207 1974 416.166 1975 411.512 1976 407.503 1977 403.905 1978 401.007 1979 396.062 1980 395.405 1981 395.41 1982 395.767 1983 394.391 1984 394.44 1985 399.909 1986 405.647 1987 402.815 1988 406.851 1989 409.996 1990 412.35 1991 433.719 1992 438.824 1993 442.839 1994 464.884 1995 481.568 1996 453.577 1997 461.609 1998 510.444 1999 578.595 2000 446.7 2001 442.127 2002 428.281 2003 421.666 2004 413.646 2005 405.842 2006 386.195 2007 371.797 2008 354.739 2009 338.457 2010 324.612 2011 312.996 2012 303.509 2013 294.542 2014 296.724 2015 288.18 2016 273.895 2017 273.177 2018 260.713 2019 255.168 2020 270.279 2021 266.648 2022 262.899