Year	% of total population
1960	4.7109999999999985
1961	4.671999999999997
1962	4.444000000000003
1963	4.227000000000004
1964	4.019999999999996
1965	3.8229999999999933
1966	3.635000000000005
1967	3.456000000000003
1968	3.2849999999999966
1969	3.1230000000000047
1970	2.9680000000000035
1971	2.7920000000000016
1972	2.6029999999999944
1973	2.4270000000000067
1974	2.2620000000000005
1975	2.1089999999999947
1976	1.9650000000000034
1977	1.831000000000003
1978	1.706000000000003
1979	1.5900000000000034
1980	1.4809999999999945
1981	1.3449999999999989
1982	1.1110000000000042
1983	0.9159999999999968
1984	0.7560000000000002
1985	0.6230000000000047
1986	0.5139999999999958
1987	0.4240000000000066
1988	0.34900000000000375
1989	0.2879999999999967
1990	0.23699999999999477
1991	0.19499999999999318
1992	0.16100000000000136
1993	0.13299999999999557
1994	0.10899999999999466
1995	0.09000000000000341
1996	0.01999999999999602
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0
2023	0