Year	% of relevant age group
1976	51.92904
1977	51.85722
1988	69.52646
1989	59.96586
1990	66.70659
1991	67.48246
1994	67.99585
1995	70.14237
1996	74.72546
1997	82.53058
1998	89.73834
1999	79.42484
2000	83.64291
2001	83.4237
2002	92.14262
2003	93.6313
2004	108.49313
2005	101.98883
2006	106.21066
2009	118.55387
2010	123.0676
2011	131.57969
2012	137.08922
2013	143.14609
2015	123.66993
2016	120.94691