Year	% of relevant age group
1970	103.2612
1971	103.22
1972	99.93449
1973	97.73941
1974	102.1431
1975	101.6794
1976	102.0583
1977	101.8064
1978	101.1747
1979	100.2157
1980	99.77969
1981	101.0329
1982	102.8542
1983	101.0898
1984	100.2464
1985	98.04741
1986	96.37931
1987	96.16734
1988	93.9598
1989	92.81024
1990	93.5742
1991	93.53002
1992	96.85239
1993	97.13251
1994	97.79267
1995	97.63408
1996	97.86325
1997	98.37818
1998	98.70733
1999	97.27799
2000	97.38706
2001	97.98221
2002	98.0662
2003	98.08449
2004	103.2499
2005	97.65951
2006	98.82674
2007	100.2536
2008	101.1062
2009	99.31195
2010	98.86913
2011	99.15723
2012	102.2632
2013	97.39994
2014	96.24125
2015	108.5637
2016	108.1314
2017	77.20791
2018	77.14012