Year	% of relevant age group
1971	71.7615
1972	70.52881
1974	67.63615
1975	68.50618
1976	80.73819
1977	80.59666
1978	79.5248
1979	82.3628
1980	82.60377
1981	85.31432
1991	89.93902
1992	87.23697
1999	87.48299
2000	88.3692
2001	83.60624
2002	83.03624
2003	83.91211
2004	84.46789
2005	90.08891
2006	104.25749
2007	106.42207
2008	109.05828
2009	108.0362
2011	107.76024
2012	108.53622
2013	106.573
2014	103.01948
2015	107.33453
2017	102.5658
2018	100.35399
2019	103.90639