Year	% of total population
1960	44.2963284031762
1961	44.3581157509253
1962	44.3837243088183
1963	44.3429847694654
1964	44.2023573679024
1965	44.0142349504171
1966	43.8403900159226
1967	43.6704240314494
1968	43.4885148798445
1969	43.2825057622279
1970	43.606113117265
1971	44.1671281138726
1972	44.3037354520524
1973	44.2735901008127
1974	44.0803620963523
1975	43.9897680153123
1976	43.8861055712975
1977	43.219040969942
1978	42.4933350164418
1979	41.7255058323066
1980	41.5288485107864
1981	41.7101888648274
1982	41.6231884846132
1983	41.7109872365622
1984	42.0125446127006
1985	42.4073013213845
1986	42.6128431965418
1987	42.7316950234763
1988	43.0662570870239
1989	43.5875205111979
1990	44.1553167793538
1991	44.8288361999907
1992	45.2034349929488
1993	45.2953250926034
1994	45.4809228313502
1995	45.4559162264156
1996	45.0603604479723
1997	44.4767161883028
1998	42.8561659161217
1999	41.1263957205167
2000	40.1834218305199
2001	39.2231860227171
2002	38.2687252445981
2003	37.3258410878163
2004	36.4286265514646
2005	35.5783525457093
2006	34.7485961893276
2007	33.9683302501657
2008	33.2416240993321
2009	32.6023530877809
2010	32.0939097709394
2011	31.7265688499178
2012	31.5377823651018
2013	31.3601094103122
2014	31.1121990065425
2015	30.8929391576066
2016	30.6756496901181
2017	30.4374790774261
2018	30.1869204629934
2019	29.9231429219091
2020	29.6255402063096
2021	29.299331573073
2022	28.948652756012
2023	28.5577349687745