Year % of total population 1960 50.0378134693722 1961 50.0562868395665 1962 50.01948900148 1963 49.8520285547089 1964 49.5433779226029 1965 49.3902589450562 1966 49.4431696293386 1967 49.5104713044679 1968 49.5985868573341 1969 49.7056730778226 1970 49.8266808117338 1971 49.9598765287334 1972 50.1014347835442 1973 50.2481133071193 1974 50.3977520595761 1975 50.546582435254 1976 50.6866296539728 1977 50.8084614187441 1978 50.8975189278582 1979 50.9461218744841 1980 50.9514387810361 1981 50.9187652031915 1982 50.8690414140844 1983 50.8159813933321 1984 50.7569816006184 1985 50.7082491926916 1986 50.6967765962379 1987 50.7071807302499 1988 50.7321633801761 1989 50.7801615928882 1990 50.832357851366 1991 50.8792635894917 1992 50.9236392922753 1993 50.9681360258229 1994 51.0134517168829 1995 51.0484828256929 1996 51.0349571627883 1997 50.9529739329369 1998 50.8353861659045 1999 50.6995856597394 2000 50.5435715474893 2001 50.3635935213021 2002 50.1616804215143 2003 49.942017114534 2004 49.7066014148622 2005 49.472092524829 2006 49.2490011516398 2007 49.0367215507878 2008 48.8397171549427 2009 48.6650259712687 2010 48.5242462348874 2011 48.4259489841876 2012 48.3970759936544 2013 48.4095114194621 2014 48.4371191348509 2015 48.4802905625979 2016 48.5172291811442 2017 48.5375511053908 2018 48.553693311148 2019 48.5772729229084 2020 48.6159355083704 2021 48.6760060955013 2022 48.7505931638789 2023 48.8444369582988