Year	% of relevant age group
1976	75.46392
1977	71.96566
1978	84.57503
1979	81.05514
1988	72.27312
1991	74.13804
1992	60.83239
1993	63.34816
1994	56.95546
1995	61.88399
1996	73.25177
1997	78.85424
1998	72.83159
1999	76.83619
2000	81.64176
2001	80.37074
2002	85.10598
2003	89.48042
2004	96.82984
2005	92.93392
2006	105.0111
2007	104.28337
2008	106.45184
2009	114.71128
2010	114.96272
2011	106.82629
2012	93.5415
2013	87.88127
2014	96.12957
2016	100.34703
2017	100.75253
2018	105.14864