Year	% of relevant age group
1972	66.162239074707
1973	67.89404296875
1974	71.7421722412109
1975	73.6533966064453
1976	74.1154403686523
1977	76.0281066894531
1978	80.4902420043945
1979	79.6296234130859
1980	80.3600387573242
1981	81.1397705078125
1982	83.2088165283203
1983	85.4806213378906
1984	90.8471832275391
1986	90.0358734130859
1998	65.6773071289062
1999	63.0922088623047
2000	60.5450210571289
2002	59.9956512451172
2004	70.9879913330078
2005	82.1850280761719
2006	83.4297103881836
2007	87.1261825561523
2008	91.1505508422852
2009	85.68115234375
2010	99.2741394042969
2012	90.3584136962891
2013	82.6073913574219