Year	% of relevant age group
1971	25.6214809417725
1972	28.2838001251221
1973	27.547399520874
1974	26.7758693695068
1975	27.5837306976318
1976	27.5957794189453
1977	22.172830581665
1978	27.6427307128906
1979	29.5104007720947
1980	33.2685317993164
1981	33.1630706787109
1982	38.6254806518555
1983	43.2798194885254
1984	49.2047805786133
1985	49.9632682800293
1986	50.8608589172363
1987	55.2674407958984
1989	47.9498100280762
1992	45.9946708679199
1993	42.3659400939941
1994	42.3028182983398
1995	43.234260559082
1996	48.9975090026855
1997	48.535701751709
1999	67.8215179443359
2000	66.5368576049805
2001	66.5847320556641
2002	64.8382034301758
2003	65.8767318725586
2004	63.8837814331055
2005	59.8461494445801
2006	57.8922805786133
2007	63.3526191711426
2008	66.4211883544922
2010	61.9601287841797
2011	57.8384017944336
2012	59.8189315795898
2013	59.0146598815918
2014	58.8895797729492
2015	58.4193305969238
2016	58.6541709899902
2017	60.2919998168945
2018	61.7190017700195
2019	64.1037368774414
2020	65.7161483764648
2021	68.6016616821289
2022	68.7200012207031
2023	68.6330032348633