Year	% of total population
1960	5.2197891432899
1961	5.17918118981509
1962	5.14997281842844
1963	5.10975266130195
1964	5.06663092531419
1965	5.03784927731718
1966	5.025907264559
1967	5.02492998768136
1968	5.02925265633368
1969	5.04646001243341
1970	5.09134268036309
1971	5.18165003634579
1972	5.32048661811926
1973	5.50289584912835
1974	5.71939461341881
1975	5.94688426747718
1976	6.16164605485645
1977	6.3470988443808
1978	6.48474050859662
1979	6.56443650318141
1980	6.5909797626982
1981	6.58892967421205
1982	6.60083323311761
1983	6.63478928972808
1984	6.68872650328207
1985	6.76958596375175
1986	6.8744951379236
1987	7.00169097181203
1988	7.1513448404413
1989	7.32532094814914
1990	7.52159551975517
1991	7.77653010822483
1992	8.06988029122569
1993	8.36339253029581
1994	8.6208361990932
1995	8.79695901740153
1996	8.94512681740355
1997	9.11258593372479
1998	9.30735086590146
1999	9.51840826454081
2000	9.72209375615666
2001	9.91551020169632
2002	10.0945786315642
2003	10.2519985949784
2004	10.41558629869
2005	10.5937351542158
2006	10.7696717394443
2007	10.934596215577
2008	11.0944782135405
2009	11.2507372161045
2010	11.3947038629725
2011	11.5469962202556
2012	11.7493967548124
2013	12.0425807915506
2014	12.3875986740075
2015	12.7219086492071
2016	13.0514179725485
2017	13.4096298802284
2018	13.8189374830553
2019	14.2528342011261
2020	14.5855552500235
2021	14.7682484441338
2022	14.9079443837966
2023	15.1319306566351