Year % of total population 1960 51.17368631122101 1961 51.17384143863659 1962 51.17365805367437 1963 51.17426535578353 1964 51.17464192109881 1965 51.174655679695185 1966 51.17403385888332 1967 51.17228169810144 1968 51.16974643714644 1969 51.16745858230776 1970 51.16812589175165 1971 51.1575390643789 1972 51.147975111490105 1973 51.15293479988667 1974 51.158064454932706 1975 51.155768527883644 1976 51.146331134661246 1977 51.136974269410764 1978 51.125099052387085 1979 51.10791244069162 1980 51.09788157385213 1981 51.0932821267459 1982 51.08442077418083 1983 51.075773470173445 1984 51.067061045800536 1985 51.058363215224674 1986 51.049605141637414 1987 51.04071905562599 1988 51.03072268936276 1989 51.021640526180065 1990 51.015154370835276 1991 51.01115695678719 1992 51.00862593993639 1993 51.008998422191866 1994 51.01193211837502 1995 51.01464506887235 1996 51.01577988742232 1997 51.01648412815834 1998 51.01722377454677 1999 51.0172764058436 2000 51.017290016696045 2001 51.016390022057614 2002 51.01358918140035 2003 51.00897483016271 2004 51.002100143447784 2005 50.993158515051014 2006 50.981215019164466 2007 50.96723531440316 2008 50.95081695186807 2009 50.932926543597226 2010 50.9176448877352 2011 50.90481570283501 2012 50.892398168290846 2013 50.88068908574631 2014 50.870822536802144 2015 50.85671692834031 2016 50.83827288517073 2017 50.82195675703858 2018 50.80671967196742 2019 50.79110668960245 2020 50.77625410332297 2021 50.760970947528364 2022 50.74467992010128 2023 50.73074112946279