Year	% of relevant age group
1971	112.0185
1972	111.6266
1973	114.2798
1974	111.6925
1975	113.4695
1976	109.88
1977	109.5527
1978	105.339
1979	104.8452
1980	109.2063
1981	105.9086
1982	106.1707
1983	109.1093
1984	108.2464
1985	107.0317
1986	104.8136
1987	105.8164
1988	106.1402
1989	106.4792
1990	106.7746
1991	109.6956
1992	114.4134
1993	116.6539
1994	113.9726
1995	113.0771
1996	113.0059
1997	113.7433
1998	112.0344
1999	106.1493
2000	104.6549
2001	109.7424
2002	111.1586
2003	111.5168
2004	113.9489
2005	114.0036
2006	113.3627
2007	110.6546
2008	111.1749
2009	110.4265
2010	115.272
2011	111.5291
2012	109.741
2013	111.1889
2014	108.8556
2015	107.851
2016	109.0125
2017	110.6846
2018	108.3992