Year	% of relevant age group
1974	65.78304
1975	88.02881
1976	51.90618
1978	69.21007
1979	67.46042
1983	72.72271
1984	78.395
1985	78.43393
1986	74.79841
1987	75.63353
1988	71.57863
1989	76.83604
1990	78.54515
1992	82.57731
1994	80.07669
1995	77.4212
1996	80.45103
1997	82.53748
1998	83.19142
1999	87.39241
2000	87.58321
2001	86.28105
2002	87.04877
2003	88.22287
2009	110.46711
2011	109.24674
2012	108.3209
2013	103.30104
2014	102.9938
2015	105.42355
2016	106.46548
2017	100.9501
2018	98.59128