Year	% of relevant age group
1973	54.05511
1974	56.08658
1975	56.3017
1976	59.10944
1977	63.47398
1978	71.53815
1979	71.32923
1980	69.72837
1981	69.73909
1982	67.2203
1983	63.13964
1984	60.55246
1985	59.8045
1986	62.8646
1987	62.58952
1988	64.94182
1989	63.47206
1990	63.40228
1991	61.07372
1992	58.19627
1993	63.84518
1994	66.00653
1995	65.37066
1996	67.23076
1997	70.2499
1998	68.11006
1999	66.83653
2000	65.54336
2001	64.20733
2002	64.55008
2003	68.75089
2006	62.07043
2007	63.86981
2008	72.45711
2009	69.41493
2011	74.88775
2012	82.42944
2013	82.56101
2014	96.68343
2015	98.29878
2016	108.08795
2017	102.66033
2018	102.0966