Year	% of relevant age group
1973	96.76465
1982	118.60724
1983	106.68236
1984	113.02976
1985	109.45758
1986	99.46278
1987	87.40495
1988	75.4485
1989	80.69604
1990	82.98377
1991	73.66291
1992	72.77442
1993	79.84715
1994	83.59369
1995	88.56965
1998	103.87382
1999	113.37345
2000	120.71934
2001	126.63417
2002	117.18496
2004	131.56442
2005	149.04997
2006	148.1246
2007	160.77017
2008	162.1233
2009	159.57501
2010	164.85234
2011	160.4907
2012	160.66348
2013	164.71703
2014	164.07259
2015	165.81461
2016	164.44094
2017	160.9598
2018	173.87672