Year	% of relevant age group
1970	88.459
1972	26.78547
1974	81.39062
1975	84.86268
1976	86.83714
1977	87.01871
1978	88.39337
1979	85.96132
1980	96.4026
1981	92.6437
1982	94.27171
1983	94.84688
1984	98.0543
1985	98.78268
1986	103.16436
1987	103.17892
1989	103.99343
1990	102.23546
1991	103.69293
1992	98.03877
1998	103.57209
2001	101.45993
2002	100.35118
2003	97.52123
2005	97.41561
2006	98.65989
2007	98.82236
2010	97.48596
2011	97.75178
2012	100.48592
2013	101.7889
2014	101.15043
2015	97.68594
2016	96.06875
2017	98.78455