Year	% of relevant age group
1970	94.68457
1971	95.43966
1972	98.20852
1973	100.4811
1974	102.4919
1975	104.6051
1976	105.8553
1977	107.4689
1978	105.0812
1979	106.7094
1980	107.3277
1981	109.7424
1982	110.191
1983	114.9866
1984	115.8041
1985	115.0875
1986	113.9236
1987	107.7211
1988	108.2295
1989	107.5447
1990	107.9157
1991	108.2872
1992	108.6785
1993	109.8843
1994	109.7684
1995	109.8181
1996	111.1201
1997	111.5136
1998	112.0607
1999	112.1668
2000	113.3806
2001	113.4868
2002	111.9394
2003	115.7342
2004	115.9566
2005	116.4445
2006	116.5812
2007	115.4821
2008	113.8379
2009	108.4378
2010	110.6641
2011	107.7278
2012	106.2446
2013	105.015
2014	103.2571
2015	103.7627
2016	104.5417
2017	102.3031
2018	103.0871