Year	% of relevant age group
1972	27.2385807037354
1973	27.5976505279541
1974	26.8699798583984
1975	26.8963794708252
1976	27.0124092102051
1977	27.0350608825684
1978	27.4590301513672
1979	27.7150802612305
1980	28.4800395965576
1981	28.8521194458008
1982	28.2454891204834
1983	28.3233203887939
1984	28.3406600952148
1985	28.3670692443848
1986	28.0564308166504
1987	27.7299194335938
1988	27.8527507781982
1989	27.3136901855469
1990	26.7925891876221
1991	26.4460105895996
1992	25.8133907318115
1993	26.2446308135986
1994	26.2891502380371
1995	27.6957397460938
1996	27.7903594970703
1997	27.6267700195312
1998	27.834379196167
1999	27.8469696044922
2000	28.6350002288818
2001	29.372730255127
2002	30.1111907958984
2003	30.969030380249
2004	31.9190292358398
2005	33.0446586608887
2006	34.4821701049805
2007	35.8524398803711
2008	37.6279182434082
2009	38.2984504699707
2010	39.0088195800781
2011	39.6415214538574
2012	39.5278587341309
2013	39.5711898803711
2014	41.8476181030273
2015	42.1708106994629
2016	42.4574699401855
2017	42.3297996520996
2018	42.4520683288574
2019	42.4173698425293
2020	42.5355606079102
2021	42.89501953125