Year % of total population 1960 48.8394195625303 1961 48.7630843827927 1962 48.7436162236338 1963 48.857482034281 1964 49.1157943905887 1965 49.2220719551679 1966 49.1255663120951 1967 49.0180958010807 1968 48.892819063664 1969 48.7503996539726 1970 48.5957473143931 1971 48.4312968287396 1972 48.2600189431539 1973 48.0836394642666 1974 47.9037170415383 1975 47.7230765110531 1976 47.5508810670004 1977 47.3974053730192 1978 47.2765070475088 1979 47.1963253310026 1980 47.1607164349896 1981 47.1643564151145 1982 47.1859047348325 1983 47.2117375230849 1984 47.2457496029631 1985 47.2719093257384 1986 47.2613287318679 1987 47.2288813162837 1988 47.1820612969414 1989 47.1133460447322 1990 47.0420242828259 1991 46.9783773858333 1992 46.9201957330131 1993 46.8633682864433 1994 46.8057946197662 1995 46.7590697844087 1996 46.7621424645296 1997 46.8340800790837 1998 46.9418936298011 1999 47.0691034686067 2000 47.2175830586187 2001 47.3905346247287 2002 47.5854346931235 2003 47.7971716382164 2004 48.0219343557581 2005 48.2428339380933 2006 48.4502217986514 2007 48.6442997601067 2008 48.8205326429325 2009 48.973021119017 2010 49.0919245833477 2011 49.1718621044636 2012 49.1906193281683 2013 49.184416035019 2014 49.1798555379941 2015 49.1431143806547 2016 49.091265961923 2017 49.0558389159737 2018 49.0246714164441 2019 48.9863583313217 2020 48.9484525711188 2021 48.9046408541622 2022 48.8456024065803 2023 48.7575048681493