Year	% of relevant age group
1987	97.96768
1988	97.716
1989	96.21176
1990	101.19537
1991	101.89168
1992	100.48127
1993	97.29893
1994	95.98598
1995	95.38424
1996	101.55978
1998	104.73582
1999	101.69543
2000	102.82617
2001	98.16792
2002	98.26268
2003	97.90318
2004	96.94519
2005	96.92238
2006	96.63301
2007	99.46502
2008	101.26118
2009	99.47359
2010	99.28567
2011	99.87019
2012	102.30435
2013	99.95983
2014	101.03289
2015	99.48302
2016	98.67027
2017	98.72194