Year	% of relevant age group
1971	98.47466
1972	97.25377
1973	95.98374
1974	98.73436
1975	98.20332
1976	98.81059
1977	100.59864
1978	102.74574
1979	105.87062
1980	112.82511
1981	120.67872
1982	127.05536
1983	131.82495
1984	138.82462
1985	145.1892
1986	151.39361
1988	99.24238
1989	93.74109
1990	98.71282
1991	99.17406
1992	95.30501
1993	96.12502
1994	96.86919
1995	98.30402
1996	101.20452
1997	102.46674
1998	103.7908
1999	134.12318
2000	102.92583
2001	102.35665
2002	99.5674
2003	98.7812
2004	97.42519
2005	99.02031
2006	105.15713
2007	107.08181
2008	108.57217
2009	103.5651
2010	99.85944
2011	98.93077
2012	97.62332
2013	98.12116
2014	101.4101
2015	102.54339
2016	105.92952
2017	97.73895
2018	94.11003