Year	% of relevant age group
1978	50.30902
1979	51.85249
1991	62.48881
1992	55.56968
1993	56.49639
1994	51.50404
1995	56.26418
1996	67.80917
1997	74.30642
1998	68.27354
1999	72.63315
2000	77.56281
2001	79.12088
2002	83.34185
2003	89.96755
2004	96.62921
2005	92.10668
2006	104.39245
2007	104.44815
2008	108.25921
2009	116.18406
2010	115.6937
2011	107.90368
2012	92.28815
2013	87.93598
2014	95.52945
2016	98.46443
2017	99.37878
2018	104.59994