Year	% of relevant age group
1971	58.81083
1972	69.7865
1973	73.88771
1974	73.55354
1975	77.7991
1976	99.59029
1977	88.69205
1978	83.92544
1979	66.81876
1980	77.54793
1981	95.2764
1982	97.59187
1983	101.73757
1984	108.80654
1985	109.37317
1986	103.49896
1987	102.71785
1992	49.48054
1994	82.36082
1995	100.51383
1996	112.24252
1997	117.52003
1999	99.73358
2000	94.83683
2001	90.48005
2002	93.43529
2003	93.59368
2004	96.87661
2005	96.55449
2006	100.19842
2007	103.19602
2008	103.45711
2010	105.65559
2011	112.88621
2012	107.05577
2013	102.74359
2016	93.56715
2017	90.61226
2018	86.22486