Year % of total population 1960 94.754 1961 94.606 1962 94.453 1963 94.296 1964 94.135 1965 93.97 1966 93.801 1967 93.627 1968 93.196 1969 92.689 1970 92.148 1971 91.569 1972 90.952 1973 90.29599999999999 1974 89.597 1975 88.854 1976 88.063 1977 87.227 1978 86.341 1979 85.859 1980 85.445 1981 85.024 1982 84.591 1983 84.149 1984 83.695 1985 83.233 1986 82.759 1987 82.275 1988 81.779 1989 81.435 1990 81.116 1991 80.792 1992 80.464 1993 80.133 1994 79.797 1995 79.457 1996 79.112 1997 78.763 1998 78.41 1999 78.053 2000 77.691 2001 77.326 2002 76.956 2003 76.389 2004 75.777 2005 75.155 2006 74.52199999999999 2007 73.879 2008 73.224 2009 72.561 2010 71.886 2011 71.202 2012 70.507 2013 69.804 2014 69.096 2015 68.383 2016 67.667 2017 66.947 2018 66.22399999999999 2019 65.5 2020 64.773 2021 64.04599999999999 2022 63.318 2023 62.591