Year	% of relevant age group
1971	53.0766716003418
1972	45.780590057373
1973	45.4043617248535
1974	45.5858688354492
1976	45.1625289916992
1978	69.4546508789062
1979	65.6982192993164
1980	70.5153503417969
1987	81.9260406494141
1991	84.2255096435547
1992	75.4633865356445
1993	75.9019088745117
1996	83.4092636108398
1997	83.4738616943359
1999	78.1847305297852
2000	94.0860900878906
2001	76.173957824707
2008	80.5787963867188
2009	81.6467590332031
2010	89.555419921875