Year	% of relevant age group
1971	56.73791
1972	57.40383
1973	63.72485
1974	54.74267
1975	58.48711
1976	49.53426
1978	54.82644
1981	55.08372
1982	55.27632
1983	52.06547
1986	58.44763
1987	46.65585
1988	48.09567
1989	51.73566
1990	58.3149
1991	52.34508
1992	46.15814
2002	54.98104
2004	50.65919
2005	57.36592
2006	53.21944
2007	62.27975
2008	79.63676
2009	81.55719
2010	88.54212
2011	78.64652
2012	80.61318
2016	115.69286