Year	% of relevant age group
1970	128.43203
1971	149.02935
1972	135.48002
1973	131.02533
1974	127.41589
1975	115.50829
1976	111.2095
1977	111.97742
1983	85.05386
1997	102.03398
1998	97.598
1999	96.35307
2000	96.26703
2002	95.71738
2003	96.71349
2004	97.21039
2005	99.09391
2006	98.79626
2007	102.26918
2008	99.38235
2009	98.06649
2010	95.45875
2011	93.40158
2012	92.8038
2013	95.5038
2014	96.81469
2015	98.88175
2017	99.17928