Year	% of relevant age group
1971	21.19582
1972	21.81845
1973	26.20378
1974	27.32774
1975	29.01451
1976	30.2816
1977	21.68299
1978	29.92085
1979	41.62919
1980	48.6059
1981	73.11267
1982	73.91958
1983	71.10666
1984	70.86199
1985	68.79396
1986	71.82062
1987	57.20654
1989	50.50328
1992	64.28288
1993	69.71807
1994	73.90573
1995	71.32841
1996	82.60512
1997	79.01984
1998	74.29092
1999	92.03736
2000	92.08326
2001	90.57651
2002	88.17877
2003	96.10578
2004	93.42126
2005	87.42484
2006	89.4604
2007	86.5212
2008	87.73949
2010	90.66026
2011	89.48282
2012	96.61841
2013	99.52642
2014	107.68667
2015	107.17306
2016	103.55542