Year % of total population 1960 50.1530054069148 1961 50.1303398242039 1962 50.1046969313531 1963 50.0808084233414 1964 50.0578451055285 1965 50.0353665502427 1966 50.0133934192123 1967 49.9920199981891 1968 49.9711954863779 1969 49.9514624307746 1970 49.9329951398194 1971 49.9151471603347 1972 49.8980516647988 1973 49.8818822639866 1974 49.8669063787319 1975 49.8535200132217 1976 49.8414938077307 1977 49.8302482064972 1978 49.8195361802885 1979 49.8097432974271 1980 49.8010681848659 1981 49.7933682123059 1982 49.7863090641521 1983 49.7798237970422 1984 49.7733913840051 1985 49.7663616242874 1986 49.7585194798564 1987 49.7496389741785 1988 49.740178879651 1989 49.7306389783138 1990 49.7168196773747 1991 49.6993790354276 1992 49.682199814382 1993 49.6651971910658 1994 49.6486903082257 1995 49.6315440225885 1996 49.6139417545433 1997 49.59650027455 1998 49.5789670105094 1999 49.5609332936245 2000 49.5380037449597 2001 49.5102893841292 2002 49.4820591368907 2003 49.4546148290637 2004 49.4275499107597 2005 49.4020439285284 2006 49.3787878596901 2007 49.3570022973071 2008 49.3375215911272 2009 49.319903264872 2010 49.3023190033208 2011 49.2851967397663 2012 49.2689362619804 2013 49.2536767239403 2014 49.2408131047114 2015 49.2273369222173 2016 49.2094158676085 2017 49.1916408127653 2018 49.1773920947436 2019 49.1634635355177 2020 49.1468595065325 2021 49.1266493321258 2022 49.1065483502572 2023 49.0896933121253