Year	% of relevant age group
1987	98.50893
1988	97.61801
1989	96.05273
1990	100.40543
1991	101.80716
1992	100.49391
1993	97.68202
1994	95.94443
1995	95.25723
1996	101.48255
1997	101.75822
1998	104.3393
1999	101.73457
2000	102.00517
2001	97.96889
2002	98.11606
2003	97.11592
2004	96.35623
2005	97.11351
2006	96.37534
2007	99.39118
2008	100.05254
2009	99.41091
2010	98.73802
2011	100.16234
2012	101.62974
2013	100.26848
2014	100.9394
2015	98.85109
2016	98.61023
2017	98.71622