Year	% of relevant age group
1971	79.61773
1972	77.97244
1973	83.45372
1974	73.52256
1975	76.28616
1976	63.54105
1977	74.78609
1978	72.79645
1981	70.79682
1982	72.39508
1983	69.84562
1986	70.28284
1987	56.68112
1988	58.52052
1989	62.91265
1990	70.73514
1991	60.62119
1992	52.30666
2002	66.32729
2004	59.77368
2005	65.73093
2006	62.07407
2007	72.74044
2008	90.74563
2009	91.90225
2010	97.83849
2011	88.04973
2012	89.55636
2016	128.08882