Year	% of relevant age group
1970	97.51472
1971	98.76462
1972	100.0541
1973	101.2048
1974	102.0793
1975	103.0744
1976	103.1866
1977	104.3191
1978	103.0284
1979	105.6703
1980	104.9627
1981	105.1586
1982	104.8621
1983	106.8878
1984	107.4146
1985	107.3626
1986	106.8932
1987	105.5683
1988	105.0795
1989	103.3749
1990	104.9222
1991	102.0676
1992	101.9464
1993	102.2167
1994	102.3648
1995	101.8241
1996	101.4725
1997	101.2758
1998	102.2562
1999	102.5797
2000	103.7028
2001	104.8903
2002	106.2823
2003	111.5733
2004	109.6816
2005	109.117
2006	108.2029
2007	108.7241
2008	108.2235
2009	105.0511
2010	106.0028
2011	104.5666
2012	103.9114
2013	102.9884
2014	101.3791
2015	101.1315
2016	102.1213
2017	100.7122
2018	101.0283