Year	% of relevant age group
1971	55.7939186096191
1972	52.3324394226074
1973	52.4736709594727
1974	48.9191093444824
1975	56.2939910888672
1976	76.9846878051758
1977	63.8255882263184
1978	69.0595474243164
1979	72.157096862793
1980	75.3553466796875
1981	84.7982025146484
1982	85.5346221923828
1983	86.1149368286133
1984	83.4512176513672
1985	79.4273834228516
1986	76.6837921142578
1987	72.7272720336914
1992	64.9492797851562
1994	83.432731628418
1995	65.6935119628906
1996	89.1670227050781
1997	83.6206893920898
1999	91.1028137207031
2000	93.2874374389648
2001	85.6100082397461
2002	95.6524200439453
2003	100.305366516113
2004	102.308113098145
2005	116.37230682373
2007	105.708740234375
2010	100.480422973633
2011	99.2183380126953
2012	95.5780792236328
2013	93.7508010864258