Year % of total population 1960 49.64464950703157 1961 49.64434936252593 1962 49.647475852407965 1963 49.65379226535987 1964 49.659543433309224 1965 49.66581006806942 1966 49.67316976583859 1967 49.67842495925764 1968 49.681764371506524 1969 49.68551494595309 1970 49.68861168521732 1971 49.69267771896773 1972 49.696574098717626 1973 49.70195883075686 1974 49.71199027835047 1975 49.72374782359974 1976 49.733781669409304 1977 49.740975928964296 1978 49.74502060950227 1979 49.746684106525734 1980 49.74419781456866 1981 49.73633519743013 1982 49.72741776477295 1983 49.72060938965179 1984 49.71372794414501 1985 49.71075694328525 1986 49.711949610224075 1987 49.71340758278189 1988 49.70811571213301 1989 49.703314483215564 1990 49.70547516042044 1991 49.70655662885585 1992 49.70741594886376 1993 49.71008606572873 1994 49.72032756034178 1995 49.72864012771465 1996 49.72536323000819 1997 49.721822960440946 1998 49.72041123139267 1999 49.71934843423879 2000 49.72342093878776 2001 49.72963788525348 2002 49.738709055970155 2003 49.75028579617117 2004 49.7604078654619 2005 49.76943524247329 2006 49.77867730833174 2007 49.78913165322417 2008 49.80018454502377 2009 49.81056670341984 2010 49.82152797680166 2011 49.833048844731145 2012 49.84383863067788 2013 49.854921587444416 2014 49.86584570040692 2015 49.87869687850553 2016 49.893577412344875 2017 49.906733192705104 2018 49.91668879707638 2019 49.92489863580057 2020 49.93218574607595 2021 49.9376259579607 2022 49.94198104841413 2023 49.94680577512464