Year	% of relevant age group
1970	44.3003387451172
1971	48.5918312072754
1972	54.8423614501953
1979	53.6887817382812
1981	70.1192779541016
1982	74.2339935302734
1983	67.8401336669922
1984	73.8418121337891
1985	78.4348068237305
1986	88.7725219726562
1987	90.3792495727539
1988	87.5280990600586
1989	82.2283706665039
1990	84.7556991577148
1991	85.8826217651367
1992	87.0203704833984
1993	86.2463607788086
1994	89.1588973999023
1995	86.7170562744141
1996	88.7980270385742
1998	88.9135513305664
1999	85.3309631347656
2000	85.6871719360352
2001	87.9448928833008
2002	90.357292175293
2003	90.322151184082
2004	90.2088623046875
2005	87.6369476318359
2006	90.7921600341797
2007	88.4758834838867
2008	91.4794769287109
2009	95.5019226074219
2012	94.5914993286133
2013	93.3778305053711