Year	% of relevant age group
1971	51.6570205688477
1972	48.603931427002
1973	46.6313400268555
1974	44.2483100891113
1975	51.9653816223145
1976	72.5580520629883
1977	60.6704711914062
1978	65.9935607910156
1979	66.6881408691406
1980	71.971061706543
1981	81.2649536132812
1982	82.0932922363281
1983	84.7924880981445
1984	83.8395919799805
1985	79.2852020263672
1986	76.4195709228516
1987	71.8229598999023
1992	63.792610168457
1994	83.1128082275391
1995	72.2117309570312
1996	89.6898880004883
1997	84.6822662353516
1999	90.233772277832
2000	94.2172775268555
2001	86.7174072265625
2002	95.6789093017578
2003	101.958297729492
2004	103.622756958008
2005	114.241317749023
2007	107.545867919922
2010	101.17130279541
2011	100.382179260254
2012	96.1993713378906
2013	95.0986633300781