Year	% of relevant age group
1970	25.8044300079346
1971	28.0292301177979
1972	29.3479595184326
1973	30.3191299438477
1974	32.6290016174316
1975	34.1091804504395
1984	43.2801895141602
1985	43.8677291870117
1986	44.9723587036133
1987	45.6282386779785
1988	46.6512413024902
1989	47.6934700012207
1990	48.1744918823242
1991	48.7258911132812
1992	49.586669921875
1993	50.0238494873047
1994	51.1112098693848
1995	52.0378684997559
1996	53.3904991149902
1997	54.9333915710449
1998	55.6346397399902
1999	56.1937294006348
2000	56.9816093444824
2001	57.8310089111328
2002	59.3997497558594
2003	60.2126197814941
2004	61.2397003173828
2005	62.5477485656738
2006	63.1438217163086
2007	63.7983589172363
2008	64.7881698608398
2009	66.3097381591797
2010	66.9444198608398
2011	67.0612182617188
2012	66.7119216918945
2013	66.4320983886719
2014	66.6747436523438
2015	68.685188293457
2016	69.7323684692383
2017	69.6757583618164
2018	69.3422622680664
2019	69.5498504638672
2020	69.8029479980469
2021	72.1907501220703
2022	71.9736022949219