Year	% of relevant age group
1971	44.04566
1973	24.23739
1974	21.28757
1975	24.32968
1976	25.6819
1977	27.01325
1978	29.96621
1979	27.8835
1980	31.64518
1981	33.55599
1982	37.69688
1983	70.99598
1984	64.19421
1985	63.89304
1986	65.71791
1987	74.56609
1988	82.5331
1989	68.54139
1990	68.92298
1991	69.87137
1992	60.27798
1993	62.57183
2000	71.24565
2001	77.82775
2002	84.88324
2003	85.85253
2004	91.54917
2005	88.72248
2006	167.42605
2007	147.87648
2008	130.4881
2009	130.68487
2010	136.03075
2011	136.68204
2012	133.67224
2013	130.83411
2014	133.24319
2015	140.41274
2016	140.11878
2017	127.73903
2018	129.07338