Year	% of relevant age group
1971	89.93072
1972	89.90995
1973	99.65762
1974	90.56826
1976	82.05204
1977	99.89552
1978	92.21129
1979	97.87834
1980	85.02007
1981	93.32857
1982	96.18009
1983	98.0588
1984	100.50594
1987	90.96678
1992	81.60675
1993	86.00665
1995	100.16036
1996	93.77439
1997	95.09877
1999	99.28174
2000	99.67718
2001	122.4702
2003	108.07617
2005	90.84239
2006	89.56823
2007	90.97214
2008	95.08083
2009	86.41523
2010	96.32605
2011	97.04383
2012	93.51305