Year	% of relevant age group
1973	63.97807
1974	66.84565
1976	70.59191
1977	75.94739
1978	84.90502
1979	84.46036
1980	81.4051
1981	81.04183
1983	72.15033
1984	68.69464
1985	67.79226
1986	71.10431
1987	71.05154
1988	73.92732
1989	72.0536
1990	71.85602
1991	69.28983
1992	66.05128
1993	72.36418
1994	74.89819
1995	73.39825
1996	75.67389
1997	78.5522
1998	75.64724
1999	74.066
2000	73.23503
2001	70.55875
2002	68.43619
2003	71.96385
2006	67.76765
2007	69.35689
2008	78.75368
2009	74.5424
2011	79.80801
2012	87.23499
2013	86.51411
2014	100.99236
2015	102.4398
2016	111.53038
2017	105.52515
2018	105.20904