Year % of total population 1960 49.5380916374669 1961 49.568218665534 1962 49.5972630138904 1963 49.6250370354113 1964 49.6511094761311 1965 49.6763222837946 1966 49.7011652794771 1967 49.7252661484187 1968 49.7472058220757 1969 49.7667225063187 1970 49.7837280052183 1971 49.7969924616966 1972 49.8077852835713 1973 49.8165979282328 1974 49.8244159854218 1975 49.8313160877003 1976 49.839147766405 1977 49.8488774216715 1978 49.859402188515 1979 49.86997049567 1980 49.8799358064743 1981 49.8891851256085 1982 49.8966422495451 1983 49.9030882385991 1984 49.910153773571 1985 49.9183686324813 1986 49.9278368462004 1987 49.9383066859994 1988 49.9492351694548 1989 49.9593870202144 1990 49.9707132556042 1991 49.9852877265763 1992 50.0016064990103 1993 50.018908712491 1994 50.0352238756975 1995 50.0491736268039 1996 50.0612232462237 1997 50.0708455333904 1998 50.0770632907025 1999 50.0824807649819 2000 50.0891835741927 2001 50.03684160788 2002 49.9351278288324 2003 49.8428204094854 2004 49.7542061546032 2005 49.6708228764158 2006 49.5950479500225 2007 49.5282713727062 2008 49.405289150277 2009 49.2300645033913 2010 49.0696340739081 2011 48.9267642553066 2012 48.8018111648345 2013 48.7587761447561 2014 48.7886054599662 2015 48.8185149332779 2016 48.8478463136956 2017 48.8767949154029 2018 48.9052410932884 2019 48.9325704420932 2020 48.9578100228426 2021 48.9838079261118 2022 49.0109770849209 2023 49.0380710299777