Year	% of relevant age group
1971	60.86843
1972	51.95837
1973	59.02611
1974	58.09968
1975	52.12462
1977	74.59528
1980	79.37078
1981	77.59593
1982	72.95327
1983	70.67664
1984	71.39588
1985	73.15499
1986	82.06109
1987	85.57451
1988	87.29119
1989	84.02903
1990	81.25617
1991	87.29099
1992	97.42318
1999	144.85746
2000	152.06914
2001	120.20318
2002	135.37344
2003	171.25621
2004	191.6261
2006	210.42774
2007	209.39057
2008	211.87704
2009	194.98245
2010	192.02099
2011	200.10926
2012	191.69752
2013	175.28191
2014	157.35254
2015	140.96206
2016	130.30447
2017	109.23414
2018	123.6125