Year	% of relevant age group
2001	97.20734
2002	98.87961
2003	99.95094
2004	95.99818
2005	95.16132
2006	92.13594
2007	91.54084
2008	92.24191
2009	92.8366
2010	95.08067
2011	94.23476
2012	97.87393
2013	97.46601
2014	98.61967
2015	102.83542
2016	105.47025
2017	104.90764
2018	100.35815