Year	% of relevant age group
1973	99.77513
1976	98.68574
1977	96.85316
1978	95.98846
1979	101.56343
1980	103.06719
1981	101.59116
1982	109.83501
1983	108.89845
1984	108.75417
1985	103.91529
1986	105.16173
1988	102.73464
1989	97.41322
1990	103.87522
1991	104.95688
1992	105.92347
1993	104.16273
1994	101.9664
1995	96.79718
1996	92.39504
1997	97.56239
1998	98.02797
1999	102.00965
2000	103.34304
2001	102.96266
2002	100.29894
2003	92.22371
2004	94.22177
2005	98.56078
2006	95.9044
2007	99.38904
2008	101.21715
2009	102.12535
2010	105.34751
2011	105.34022
2012	108.7653
2013	107.8713
2014	111.98504
2015	117.79925
2016	102.38135
2017	108.40752
2018	105.05548