Year	% of relevant age group
1971	49.83604
1972	60.99755
1973	63.90136
1974	60.32493
1975	63.0333
1976	82.24076
1977	80.80886
1978	76.06847
1979	71.81758
1980	77.39079
1981	96.77923
1982	99.27899
1983	97.84342
1984	102.07722
1985	100.26355
1986	93.32738
1987	92.26363
1992	50.12021
1994	80.23078
1995	92.2589
1996	94.54988
1997	101.96247
1999	99.33786
2000	102.6463
2001	104.90486
2002	104.5984
2003	104.4749
2004	100.67345
2005	96.08713
2006	95.1303
2007	98.87293
2008	99.38278
2010	104.89403
2011	110.83586
2012	109.70887
2013	104.73319
2016	96.96385
2017	92.78446
2018	93.36705