Year	% of relevant age group
1974	107.4348
1975	106.4841
1976	106.9134
1977	105.9749
1978	103.938
1979	102.3603
1980	101.7469
1981	103.1772
1982	102.8069
1983	102.9222
1984	102.1803
1985	104.0649
1986	101.4484
1987	101.313
1988	101.1936
1989	99.51391
1990	99.71362
1991	101.3446
1992	100.2887
1993	99.62092
1994	100.9079
1995	100.8258
1996	103.1583
1997	102.7593
1998	102.6933
1999	103.104
2000	109.1318
2001	105.9704
2002	103.9482
2003	103.6734
2004	102.8744
2005	101.0221
2006	104.3904
2007	103.0333
2008	102.9076
2009	102.0017
2010	105.0847
2011	104.3808
2012	104.196
2013	103.5722
2014	104.0349
2015	103.8084
2016	102.9838
2017	101.7756
2018	102.2879