Year % of total population 1960 49.9162430816429 1961 49.937546107907 1962 49.9530139929384 1963 49.9659612879582 1964 49.9762117481 1965 49.9898220578872 1966 50.0058594452292 1967 50.0230585151904 1968 50.0401412635696 1969 50.0565907789631 1970 50.0729359957749 1971 50.0875979920012 1972 50.0773376112261 1973 50.0434338266669 1974 50.0088419484992 1975 49.9765458945215 1976 49.9435305889962 1977 49.9239556131468 1978 49.9204464016565 1979 49.9190641988086 1980 49.9235762746282 1981 49.9267626208293 1982 49.9214986047222 1983 49.9257940655076 1984 49.9400039537484 1985 49.9503046262164 1986 49.9545093011239 1987 49.9527769300043 1988 49.9493773131275 1989 49.9454367100622 1990 49.9413857432643 1991 49.9352031126197 1992 49.9272263462594 1993 49.9184032163335 1994 49.9085378571673 1995 49.9105118348597 1996 49.9252400812131 1997 49.9426290020724 1998 49.962343243022 1999 49.9840277514314 2000 50.0068448259227 2001 50.029317219365 2002 50.0499610655544 2003 50.0680314767372 2004 50.0735238174516 2005 50.0798241266681 2006 50.1003339860751 2007 50.1236991450577 2008 50.1484874723534 2009 50.1749359147744 2010 50.2009541699927 2011 50.2243805476096 2012 50.2447801820625 2013 50.2633704465217 2014 50.2818085747906 2015 50.3009562330463 2016 50.3173246425583 2017 50.3304101554501 2018 50.3439272483975 2019 50.3569318634806 2020 50.3558854463704 2021 50.3435348844435 2022 50.3293891705987 2023 50.3117173965231