Year % of total population 1960 50.9833360337229 1961 50.9502541085801 1962 50.9196972478798 1963 50.8911516101011 1964 50.8653071461152 1965 50.8412056978925 1966 50.8179031244373 1967 50.7966598732459 1968 50.7755965685824 1969 50.754504734956 1970 50.7361345327558 1971 50.7185850302107 1972 50.7021042136748 1973 50.6876465214568 1974 50.6725031650702 1975 50.6562158433407 1976 50.6388339597373 1977 50.6199526499968 1978 50.59960888145 1979 50.5788406252944 1980 50.5584051786277 1981 50.5382245194308 1982 50.5185730319639 1983 50.4996053423747 1984 50.4815318835705 1985 50.4642083811351 1986 50.4476301864639 1987 50.4302827212747 1988 50.4115050261052 1989 50.393360893993 1990 50.3761078442874 1991 50.3596901984931 1992 50.3440293386648 1993 50.3283922550518 1994 50.3120283004299 1995 50.2938538790226 1996 50.2744133139872 1997 50.2587235331337 1998 50.2488831175848 1999 50.244058106076 2000 50.2436325230872 2001 50.2456931362777 2002 50.2474852622605 2003 50.2475131613022 2004 50.2440280067026 2005 50.2387935912248 2006 50.2342521942426 2007 50.2273681078776 2008 50.2203684492419 2009 50.2147596837671 2010 50.2090349694513 2011 50.2022001097361 2012 50.1944593455437 2013 50.1845954097225 2014 50.1742692510102 2015 50.1670562432477 2016 50.1604368075356 2017 50.1533118156978 2018 50.1462329914308 2019 50.1379101993983 2020 50.1269628884878 2021 50.1145002673811 2022 50.1025303702447 2023 50.0917834398853