Year	% of relevant age group
1972	77.7732
1973	78.14662
1974	74.57751
1975	81.35429
1976	84.46634
1977	85.3176
1978	90.54886
1979	87.88546
1980	90.51907
1981	92.9234
1982	89.54178
1983	88.11881
1984	86.9605
1985	88.6415
1986	88.32359
1987	85.60761
1988	86.33627
1989	86.78671
1990	83.66388
1991	82.00754
1992	82.58806
1993	83.27246
1994	86.30539
1995	93.01384
1996	95.79095
1997	105.9635
1998	103.5501
1999	97.67674
2000	107.0674
2001	111.1586
2002	118.0451
2003	119.1201
2004	120.0876
2005	123.9755
2006	123.541
2007	126.6677
2008	133.1747
2009	129.4357
2010	129.4073
2011	132.9056
2012	130.652
2013	131.4685
2014	133.0942
2015	132.3119
2016	131.9128
2017	130.7759
2018	129.2075