Year	% of relevant age group
1971	3.9015998840332
1972	4.02240991592407
1973	4.64312982559204
1974	4.19807004928589
1976	5.9945502281189
1978	6.91638994216919
1981	6.18981981277466
1982	5.03301000595093
1983	6.01138019561768
1984	5.54219007492065
1985	5.34621000289917
1986	5.30211019515991
1987	4.62276983261108
1988	4.63661003112793
2001	14.6297903060913
2002	15.1481399536133
2008	29.0466194152832
2009	32.4565582275391
2010	34.7054710388184
2011	39.059009552002
2012	32.8650016784668
2013	29.2847690582275
2014	32.2114295959473
2015	29.3740692138672
2016	29.2448196411133
2017	28.2608394622803