Year	% of relevant age group
1973	99.66681
1974	99.40353
1975	101.67035
1976	103.66921
1977	97.71439
1978	108.72887
1979	97.7772
1980	93.31026
1981	98.21353
1982	97.78452
1983	99.69205
1984	93.25642
1985	94.52394
1986	92.52001
1987	96.01476
1988	93.10341
1990	85.33021
1991	84.08028
1999	80.68385
2000	81.98266
2001	124.66177
2002	107.41384
2003	98.8606
2004	101.4162
2005	104.00432
2006	105.69251
2007	109.53735
2008	116.91273
2009	122.95424
2010	129.16551
2011	127.89755
2012	131.17936
2014	133.03303
2015	137.04563
2016	136.24399
2017	132.45763
2018	122.94506