Year	% of relevant age group
1971	25.7665
1973	15.70425
1974	14.33427
1975	16.00501
1976	17.4484
1977	18.15044
1978	19.09488
1979	18.71197
1980	20.91194
1981	21.8058
1982	24.282
1983	48.82926
1984	46.20046
1985	48.95856
1986	51.80312
1987	61.8311
1988	73.98437
1989	57.48641
1990	56.56145
1991	60.90453
1992	50.6546
1993	52.6019
2000	57.52738
2001	63.39849
2002	66.99339
2003	73.8553
2004	82.86054
2005	81.59473
2006	167.03651
2007	140.54064
2008	123.61787
2009	125.49434
2010	131.68281
2011	133.97347
2012	129.51239
2013	128.88378
2014	131.83989
2015	137.4657
2016	138.89483
2017	125.00741
2018	127.02607