Year per 1,000 male adults 1960 188.825 1961 180.848 1962 189.925 1963 186.217 1964 181.449 1965 182.621 1966 176.357 1967 184.688 1968 190.728 1969 193.371 1970 199.399 1971 207.104 1972 202.01 1973 202.101 1974 208.94 1975 213.849 1976 215.935 1977 222.5 1978 239.469 1979 246.615 1980 263.226 1981 271.782 1982 270.435 1983 288.808 1984 291.369 1985 291.392 1986 289.983 1987 283.412 1988 278.613 1989 298.822 1990 305.087 1991 306.528 1992 325.073 1993 328.648 1994 326.483 1995 317.913 1996 296.354 1997 287.483 1998 292.771 1999 290.064 2000 271.44 2001 260.615 2002 259.032 2003 257.047 2004 252.792 2005 256.342 2006 249.886 2007 245.63 2008 233.087 2009 228.461 2010 218.943 2011 206.225 2012 195.724 2013 182.243 2014 179.963 2015 177.627 2016 172.279 2017 168.058 2018 166.734 2019 159.172 2020 164.516