Year	% of total population
1960	53.588
1961	53.443
1962	53.298
1963	53.152
1964	53.007
1965	52.861
1966	52.716
1967	52.57
1968	52.425
1969	52.279
1970	52.22
1971	52.265
1972	52.309
1973	52.354
1974	52.398
1975	52.443
1976	52.487
1977	52.531
1978	52.576
1979	52.701
1980	52.922
1981	53.142
1982	53.363
1983	53.583
1984	53.804
1985	54.024
1986	54.243
1987	54.463
1988	54.683
1989	54.84
1990	54.925
1991	55.01
1992	55.096
1993	55.181
1994	55.266
1995	55.206
1996	54.982
1997	54.759
1998	54.535
1999	54.311
2000	54.087
2001	53.863
2002	53.638
2003	53.413
2004	53.188
2005	52.948
2006	52.692
2007	52.419
2008	52.132
2009	51.828
2010	51.509
2011	51.175
2012	50.825
2013	50.459
2014	50.079
2015	49.683
2016	49.272
2017	48.847
2018	48.407
2019	47.952
2020	47.484
2021	47.002
2022	46.506
2023	45.997