Year	% of relevant age group
1970	99.31832
1971	88.69565
1972	96.50254
1973	94.4936
1974	96.70609
1975	99.71807
1976	100.99695
1977	100.31302
1978	96.77179
1979	100.46877
1980	103.19921
1981	104.06144
1982	102.02783
1983	96.73387
1984	93.91742
1985	96.39082
1986	89.61339
1987	92.34831
1988	93.97369
1989	97.10855
1990	100.22245
1991	100.90306
1992	104.2822
1993	102.82707
1994	105.56869
1995	109.52248
1996	109.99234
1997	107.77434
1998	107.83128
1999	105.73163
2000	106.94727
2001	106.2445
2002	104.67852
2003	109.78087
2004	120.60348
2005	117.5751
2006	122.67531
2007	117.30335
2009	110.99051
2010	132.62066
2011	116.89113
2012	109.61284
2013	105.22064
2014	104.92981
2015	100.07912
2016	95.01418
2017	97.9257