Year	% of total population
1960	10.5363921764374
1961	10.6151018088082
1962	10.6574434938455
1963	10.7253278016252
1964	10.8654431808752
1965	11.0345246609144
1966	11.1864454804994
1967	11.3530652427504
1968	11.5369466878375
1969	11.6700921773792
1970	11.7728794220847
1971	11.8942547028864
1972	12.0337080028221
1973	12.1427425896445
1974	12.2490204423571
1975	12.3540380936129
1976	12.4236164572527
1977	12.4958235999169
1978	12.5404556532695
1979	12.5522629370877
1980	12.4963185087438
1981	12.3062576706937
1982	12.035584408984
1983	11.8240953541295
1984	11.6530705931705
1985	11.4510460865314
1986	11.3492766709873
1987	11.350059814351
1988	11.393536489812
1989	11.4966542786491
1990	11.6328722573876
1991	11.8351305898531
1992	12.2195378222862
1993	12.6975200997318
1994	13.1123846077222
1995	13.5113833869663
1996	13.9201697951445
1997	14.3132206346861
1998	14.6057124472902
1999	14.7771444002256
2000	14.9832143356983
2001	15.2746282496076
2002	15.6327035178794
2003	16.0110764117008
2004	16.3733719491765
2005	16.709038859878
2006	17.0676378238959
2007	17.3612880149518
2008	17.4356082335897
2009	17.4311369774789
2010	17.4426883258795
2011	17.5731056048949
2012	17.8636285970475
2013	18.1990794256217
2014	18.5623943535541
2015	18.8894969902784
2016	19.1856225903366
2017	19.4693781671035
2018	19.6801037705702
2019	19.9022108250816
2020	20.1811810049916
2021	20.371400337623
2022	20.5792036873087
2023	20.905141538693