Year	% of relevant age group
1971	31.4566993713379
1972	37.216438293457
1973	43.9212188720703
1974	39.9886283874512
1975	40.2642517089844
1977	41.010871887207
1978	42.7693786621094
1979	44.1761207580566
1980	45.2683410644531
1981	45.5903205871582
1982	43.8444404602051
1983	43.8374900817871
1984	45.4771995544434
1985	47.3265609741211
1986	51.3522491455078
1987	52.0487213134766
1988	52.5166511535645
1989	51.580078125
1990	48.0835304260254
1991	47.2782211303711
1992	48.3730201721191
1993	46.5700912475586
1994	46.3047714233398
1999	47.7058906555176
2000	47.3169898986816
2001	47.8041114807129
2002	49.0279006958008
2003	52.5766296386719
2004	57.2935104370117
2005	61.1796417236328
2006	61.5971488952637
2007	62.3446998596191
2008	65.2798690795898
2009	66.0595321655273
2010	67.7015991210938
2011	67.9179306030273
2012	69.9894485473633
2013	51.5959701538086
2020	40.6377601623535
2021	44.0639114379883
2022	43.1888084411621
2023	42.3727493286133