Year	% of relevant age group
1974	96.96843
1980	95.92807
1981	96.45652
1982	96.75976
1983	97.06462
1984	95.77075
1985	95.37011
1987	96.41444
1988	98.44387
1989	97.63337
1990	95.59711
1991	99.108
1992	102.6439
1993	100.01747
1998	95.41196
1999	97.64168
2000	102.6029
2001	101.33688
2002	98.85658
2003	97.78209
2004	98.84045
2005	95.29378
2006	95.57988
2007	99.93458
2008	95.19709
2009	96.88382
2010	97.02325
2011	99.91674
2012	102.12854
2013	105.76881
2014	106.77904
2015	105.18468
2016	109.6852
2017	106.20437