Year % of total population 1960 49.8706271088655 1961 49.8872743150237 1962 49.8782308504992 1963 49.869422251866 1964 49.859817566282 1965 49.8479714921556 1966 49.833318507149 1967 49.8179431876089 1968 49.8004773381038 1969 49.7819430134829 1970 49.7624283775794 1971 49.7494060826105 1972 49.7423801305828 1973 49.7331698327773 1974 49.7220418570667 1975 49.7089553239716 1976 49.6945802086914 1977 49.6799224563883 1978 49.6651743604355 1979 49.6502178230094 1980 49.6344014721605 1981 49.6224120992297 1982 49.6130901609591 1983 49.602503687183 1984 49.5913052330714 1985 49.5789281595919 1986 49.5648711529353 1987 49.5487792422739 1988 49.5303579669062 1989 49.5090297876071 1990 49.4828112368093 1991 49.4637788672429 1992 49.486038888695 1993 49.5375333416311 1994 49.5885509361667 1995 49.6386138416287 1996 49.6860946082055 1997 49.7295457825694 1998 49.772233800319 1999 49.8176814676246 2000 49.8642383713347 2001 49.9096483458343 2002 49.9541642170499 2003 49.9614758560117 2004 49.9292499973699 2005 49.8950255953266 2006 49.8620061263214 2007 49.8302096042278 2008 49.7988463833455 2009 49.7674567192629 2010 49.7350026472995 2011 49.7010332827217 2012 49.6663826035061 2013 49.5586149688261 2014 49.3840490470833 2015 49.2193035782637 2016 49.0601209084071 2017 48.9067830808173 2018 49.1448911158808 2019 49.1792832077 2020 48.9084322417656 2021 48.9250739838944 2022 48.963678674854 2023 49.0056940358845