Year	% of relevant age group
1971	95.03986
1972	96.22601
1973	97.33974
1974	98.12516
1975	99.36834
1976	99.71207
1977	100.8031
1978	99.93173
1979	102.1947
1980	101.7633
1981	102.0261
1982	101.721
1983	103.3596
1984	103.7216
1985	103.6942
1986	103.2216
1987	101.9182
1988	101.3126
1989	99.84115
1990	101.0365
1991	98.36766
1992	98.36134
1993	98.70568
1994	98.89236
1995	98.98265
1996	98.78723
1997	99.76969
1998	100.3272
1999	100.2842
2000	102.1302
2001	103.6701
2002	105.6882
2003	110.4976
2004	109.2666
2005	109.5257
2006	108.8715
2007	109.7527
2008	110.3335
2009	107.305
2010	108.0822
2011	107.4037
2012	106.7752
2013	106.1853
2014	104.9696
2015	104.5848
2016	105.4352
2017	103.8208
2018	103.951