Year	% of relevant age group
1971	98.73107
1972	106.4855
1973	104.84682
1974	104.15842
1975	102.41749
1976	96.54662
1977	91.89361
1978	94.43815
1979	98.73836
1980	98.99774
1981	99.14398
1982	100.97437
1983	98.3433
1984	95.44906
1987	101.03399
1988	103.81374
1989	101.25894
1990	100.09716
1991	97.87288
1992	100.28812
1993	103.37682
1994	103.14531
1999	104.17671
2000	101.71577
2001	99.3898
2002	96.12226
2003	92.87294
2004	92.7567
2005	94.29928
2006	99.37996
2007	102.68182
2008	105.72825
2009	102.98666
2010	103.70355
2011	101.1515
2012	101.13271
2013	99.14789
2014	100.76608
2015	100.10301
2016	100.02996
2017	101.72629