Year	% of relevant age group
1977	99.39985
1980	109.78339
1981	114.39856
1982	110.22253
1983	119.41811
1984	108.78419
1985	106.01589
1987	68.38274
1988	93.77074
1990	104.47461
1996	146.21849
1999	98.75838
2001	112.089
2002	112.60794
2003	106.59528
2004	107.75452
2005	106.41588
2007	100.99813
2008	100.37992
2010	98.33764
2011	91.19914
2012	93.3893
2013	94.81839
2014	96.88139
2015	98.79966
2016	96.58577
2017	91.55349