Year	% of relevant age group
1970	105.6328
1971	105.6574
1972	101.9084
1973	100.4201
1980	100.3585
1981	100.4307
1982	100.3515
1983	99.63153
1984	99.53199
1985	99.62144
1986	99.39933
1987	99.86206
1988	99.12863
1989	98.43935
1990	97.6088
1991	97.55142
1992	98.64759
1993	98.83262
1994	99.29096
1995	100.8442
1996	100.9262
1997	101.234
1998	100.8456
1999	100.1224
2000	99.70695
2001	98.94047
2002	98.2634
2003	99.11826
2004	101.5978
2005	99.97923
2006	100.7654
2007	101.3313
2008	100.4363
2009	99.77831
2010	99.83974
2011	99.76923
2012	100.1951
2013	98.85596
2014	98.0058
2015	100.9247
2016	100.1141
2017	94.21484
2018	94.26789