Year	% of relevant age group
1972	46.090389251709
1973	47.0864295959473
1974	47.2996101379395
1975	47.743408203125
1976	47.7554397583008
1977	48.8470993041992
1978	50.0811882019043
1979	51.326099395752
1980	51.0672607421875
1981	50.9249114990234
1982	51.0020599365234
1983	50.4017295837402
1984	50.8355598449707
1985	51.1766586303711
1986	50.3379592895508
1987	50.3271713256836
1988	49.6202583312988
1989	51.699821472168
1990	51.2608909606934
1991	52.4697494506836
1992	51.9050712585449
1993	52.6596984863281
1994	53.2316703796387
1995	53.5983810424805
1996	53.5594902038574
1997	53.9389305114746
1998	54.7588081359863
1999	54.7273712158203
2000	55.1515312194824
2001	55.2353096008301
2002	56.2743911743164
2003	57.9187889099121
2004	59.6545181274414
2005	60.0383605957031
2006	61.2108612060547
2007	61.1951103210449
2008	61.5468406677246
2009	64.324462890625
2010	64.9847030639648
2011	66.0128936767578
2012	66.1877822875977
2013	66.0248336791992
2014	65.3857192993164
2015	66.3101425170898
2016	66.4363479614258
2017	66.6386413574219
2018	65.936897277832
2019	65.9160614013672
2020	66.2158584594727
2021	67.6610870361328