Year % of total population 1960 58.50989637051225 1961 58.411172309440474 1962 58.26489330759671 1963 58.19512287928008 1964 58.356235560861236 1965 58.933325548808966 1966 60.590171240204924 1967 62.39677935490518 1968 64.40082981338008 1969 66.77922168808308 1970 68.82282451363128 1971 67.20299883316602 1972 65.96967558014194 1973 64.87382628200967 1974 63.82272962832848 1975 62.777851784401065 1976 62.01082999441303 1977 61.20475455511235 1978 60.49760961391164 1979 59.96915595220731 1980 59.65666356510272 1981 59.32629212740286 1982 59.12478575806104 1983 58.952735785367516 1984 59.087170463278106 1985 59.38225757355179 1986 59.508620781639884 1987 59.69488551738682 1988 59.96943385468306 1989 60.31964517855777 1990 83.09931472090311 1991 100 1992 80.10160227516039 1993 73.64053348814285 1994 69.60129327416999 1995 66.17335922311327 1996 66.55010984443304 1997 66.59377292122252 1998 66.71600137177226 1999 66.91354710462777 2000 67.19284345814074 2001 67.55036215766235 2002 68.0041262814038 2003 68.56206929697083 2004 69.24342494779383 2005 69.2482295138729 2006 68.89856982012 2007 68.33126626346504 2008 67.97520115582078 2009 67.80096939779293 2010 67.73998795932262 2011 66.71357343363577 2012 64.99210672753082 2013 63.64487985524821 2014 64.90164781645178 2015 65.70132648782486 2016 66.73385069730502 2017 68.89166390296599 2018 69.24118378063483 2019 68.73281394249172 2020 71.42742803255815 2021 74.75834765843928 2022 75.8636530063087 2023 76.51221268701389