Year	% of relevant age group
1972	92.72552
1973	97.94664
1974	96.15717
1975	93.38353
1976	99.73967
1977	101.38219
1978	97.62821
1979	97.45501
1980	96.13557
1981	93.58158
1982	92.5971
1983	92.55343
1984	96.70984
1985	92.09692
1986	96.4285
1987	98.99946
1988	98.33608
1989	93.45639
1990	95.53314
1991	99.4192
1992	101.26601
1993	94.75952
1994	95.21053
1995	92.24296
1996	98.15563
1997	96.56895
1999	99.34603
2000	98.1214
2001	85.47417
2002	100.47923
2003	97.60741
2004	99.50586
2005	99.63474
2006	98.14474
2007	102.47335
2008	107.25741
2009	107.3908
2010	116.09212
2011	113.20019
2012	115.47437
2013	114.68129
2014	112.63183
2015	108.98785
2016	106.43325
2017	102.63635
2018	102.23707