Year	% of relevant age group
1973	36.9603385925293
1974	37.431209564209
1975	40.1579208374023
1977	45.1699905395508
1978	48.7425193786621
1979	51.6381797790527
1980	54.5662307739258
1981	55.2945709228516
1982	57.4066390991211
1983	58.2560195922852
1984	59.2067184448242
1985	68.1665725708008
1986	65.5785522460938
1987	64.2155609130859
1988	60.919849395752
1989	52.2228393554688
1990	58.67333984375
1991	54.7646484375
1992	53.1145401000977
1993	53.0965309143066
1994	52.8350715637207
1995	54.9803695678711
1996	56.5768089294434
1997	58.2693901062012
1998	60.4399299621582
1999	61.7685012817383
2000	65.0786514282227
2001	65.6943130493164
2002	66.9216232299805
2003	69.2167282104492
2004	76.6746292114258
2005	82.5661926269531
2006	87.2271270751953
2007	87.0659103393555
2008	84.1675415039062
2009	81.4151992797852
2010	84.3666076660156
2011	88.9075622558594
2012	96.3547515869141
2013	93.8527526855469
2014	95.9680786132812
2015	96.6460113525391
2016	94.9835586547852
2017	91.1308517456055
2018	90.8934707641602
2019	94.116828918457
2020	96.6515426635742
2021	100.680572509766
2022	99.7663192749023