Year	% of relevant age group
1970	40.387279510498
1971	38.5212707519531
1972	39.2127799987793
1973	48.1225891113281
1974	53.8918418884277
1975	57.6835403442383
1976	59.5888404846191
1977	59.3480796813965
1978	59.41748046875
1979	58.5545692443848
1980	60.5290603637695
1981	60.7696189880371
1982	62.494010925293
1983	63.9321594238281
1984	64.0960083007812
1985	65.1493911743164
1986	66.6072616577148
1987	64.2921371459961
1988	67.7239532470703
1989	64.8775482177734
1990	65.1111068725586
1991	62.8975601196289
1992	63.739990234375
1993	62.2057914733887
1994	63.2409286499023
1995	66.7795791625977
1996	64.156852722168
1997	65.7429504394531
1998	66.650749206543
1999	65.537712097168
2000	66.0936813354492
2001	62.2842407226562
2002	64.331657409668
2003	63.8376884460449
2004	64.8619079589844
2005	67.6669616699219
2006	67.0549774169922
2007	70.4123001098633
2009	78.1740570068359
2010	85.2765274047852
2011	85.2851104736328
2012	85.838020324707
2013	86.7108383178711
2014	87.8140487670898
2015	93.61572265625
2016	99.5820693969727
2017	102.627220153809
2018	102.443962097168
2019	100.767379760742
