Year	% of relevant age group
1999	30.856689453125
2001	34.8879585266113
2002	36.2748184204102
2003	40.0545883178711
2004	40.9074287414551
2005	42.703929901123
2008	48.6263694763184
2010	50.7245407104492
2012	55.2742614746094
2013	56.9923210144043
2016	58.7242584228516