Year	% of relevant age group
1987	51.5332489013672
1988	52.0530014038086
1989	52.3820686340332
1990	52.3857803344727
1991	52.8424987792969
1992	54.1087989807129
1993	54.7918014526367
1994	54.4993896484375
1995	55.0937805175781
1996	55.5360298156738
1997	56.4233894348145
1998	57.3684692382812
1999	58.5923194885254
2000	59.9156799316406
2001	61.6182594299316
2002	63.665699005127
2003	65.1057968139648
2004	66.6797485351562
2005	68.1135025024414
2006	67.6667327880859
2007	68.7154693603516
2008	69.2246704101562
2009	69.817626953125
2010	70.8345718383789
2011	71.9891967773438
2012	71.9164886474609
2013	71.2462615966797
2014	71.3133163452148
2015	71.2547302246094
2016	72.2524871826172
2017	71.7123413085938
2018	71.7521133422852
2019	72.337287902832
2020	73.7339782714844
2021	74.3260803222656
2022	74.0034103393555