Year	% of total population
1960	2.69510819205884
1961	2.6932542225367
1962	2.69869023751688
1963	2.70871950554026
1964	2.7182311209879
1965	2.72679967014983
1966	2.73591198831029
1967	2.7445038664154
1968	2.75238898309765
1969	2.76158434434177
1970	2.7776772199452
1971	2.79819923957691
1972	2.81691682064683
1973	2.83372685427447
1974	2.84889157279604
1975	2.86157696948816
1976	2.87228219383872
1977	2.88169473440427
1978	2.88870820867001
1979	2.89242071950607
1980	2.89196411987719
1981	2.88551986131707
1982	2.87151085453547
1983	2.85347302974907
1984	2.8351413821503
1985	2.81520131238569
1986	2.79213352784885
1987	2.76859569069759
1988	2.74551791975268
1989	2.72039120707815
1990	2.69233936662945
1991	2.66101666202333
1992	2.62636408250212
1993	2.58832227500758
1994	2.54623554556551
1995	2.50057734596349
1996	2.45181458273679
1997	2.39924170794621
1998	2.3448401321749
1999	2.28877498463425
2000	2.23004224338045
2001	2.16931692458882
2002	2.11161287875973
2003	2.05724815885775
2004	2.00414013535883
2005	1.95205402015129
2006	1.90196897774665
2007	1.85543578077633
2008	1.81326636253711
2009	1.77711333467036
2010	1.74807125810877
2011	1.72603540183546
2012	1.7086561112506
2013	1.69145655365653
2014	1.67782420317766
2015	1.67316070735089
2016	1.67471976952438
2017	1.68135102599839
2018	1.69378959606901
2019	1.71222710140295
2020	1.72986015480474
2021	1.73892993548801
2022	1.7474931529261
2023	1.76865650327332