Year	% of relevant age group
1977	11.5168504714966
1978	10.8803596496582
1988	13.9271297454834
2003	25.768009185791
2004	32.204719543457
2005	34.7182502746582
2007	30.80299949646
2008	29.2877292633057
2010	29.0386505126953
2011	43.6496391296387
2012	48.5069999694824
2013	78.2578201293945
2014	71.4285736083984
2015	71.6189575195312
2017	74.8314590454102