Year	% of relevant age group
1970	128.11845
1971	149.60038
1972	135.84752
1973	131.42079
1974	128.31768
1975	116.81732
1976	111.58014
1977	115.43398
1983	85.54763
1997	102.87768
1998	98.07277
1999	96.86457
2000	96.89909
2002	96.251
2003	97.44268
2004	98.29051
2005	99.89143
2006	99.66437
2007	103.18145
2008	100.48559
2009	98.6715
2010	95.63874
2011	93.59092
2012	93.13183
2013	95.80902
2014	97.46012
2015	98.87218
2017	99.84037