Year	% of relevant age group
1971	32.8296699523926
1972	34.967830657959
1985	78.9997329711914
1988	78.6261978149414
1993	69.7958908081055
1997	63.9483299255371
1999	66.8362197875977
2001	68.6840515136719
2003	83.4256591796875
2004	80.1715927124023
2005	74.4189910888672
2007	84.0548477172852
2008	83.7457809448242
2009	87.6766662597656
2010	72.765739440918