Year	% of relevant age group
1970	128.78263
1977	122.09449
1978	114.90054
1979	113.68903
1980	114.1856
1981	117.11074
1993	115.55862
1995	114.01646
1998	115.73092
1999	116.88038
2000	113.79223
2001	115.21834
2002	113.63783
2003	110.09495
2004	106.98302
2005	107.49682
2006	106.23104
2007	106.27308
2008	102.72498
2009	103.85868
2010	106.86071
2011	106.04961
2012	92.10517
2013	91.71886
2014	91.19826
2015	95.85275
2016	102.00928
2017	103.41648
2018	107.49468