Year	% of relevant age group
1973	64.4423217773438
1974	65.0252304077148
1975	66.1890487670898
1976	67.3579864501953
1977	67.9967269897461
1978	68.8847427368164
1979	69.0850677490234
1980	69.6300811767578
1981	69.6045608520508
1982	69.6066818237305
1983	69.5619125366211
1984	69.8187866210938
1985	69.999397277832
1986	70.7177886962891
1987	71.5487289428711
1988	73.9578704833984
1989	74.2991561889648
1990	75.4494781494141
1991	76.2126693725586
1992	76.821891784668
1993	77.9261093139648
1994	77.2534866333008
1995	77.0943832397461
1996	77.82080078125
1997	78.2112884521484
1998	78.1014862060547
1999	78.550651550293
2000	79.548957824707
2001	80.6229400634766
2002	81.1966323852539
2003	81.634162902832
2004	82.0360565185547
2005	82.54931640625
2006	84.8799362182617
2007	85.6775665283203
2008	86.0590896606445
2009	86.5653305053711
2010	86.5171737670898
2011	87.8636474609375
2012	87.1135025024414
2013	86.9619827270508
2014	86.6458511352539
2015	86.3321914672852
2016	86.1843338012695
2017	86.6089324951172
2018	86.2862777709961
2019	86.5557098388672
2020	86.6881332397461
2021	87.064323425293
2022	87.1350631713867