Year	% of relevant age group
1970	90.4182
1971	85.30618
1972	88.67693
1973	91.9664
1974	93.00266
1975	95.65377
1976	92.87217
1977	99.08503
1978	96.50394
1979	98.32619
1980	102.22004
1981	103.3491
1982	98.92965
1983	94.61041
1984	95.97079
1985	94.82128
1986	89.83567
1987	91.37533
1988	92.26609
1989	94.58955
1990	100.23913
1991	100.39446
1992	101.85889
1993	98.83025
1994	103.72325
1995	107.34283
1996	106.88635
1997	105.60312
1998	103.53459
1999	102.17658
2000	100.54682
2001	102.16216
2002	99.37133
2003	103.34572
2004	112.79634
2005	108.18934
2006	115.08266
2007	111.6159
2009	104.14687
2010	120.93391
2011	104.64473
2012	103.30573
2013	99.36527
2014	100.63189
2015	95.55273
2016	91.17608
2017	94.86866