Year	% of relevant age group
1970	80.7120971679688
1971	80.4572830200195
1972	81.767463684082
1973	75.3722534179688
1974	78.7535171508789
1975	80.6127395629883
1976	83.0824508666992
1977	81.7965621948242
1978	81.6988677978516
1979	88.0925598144531
1980	88.8399963378906
1981	90.2693405151367
1982	87.4407501220703
1983	87.0611419677734
1984	88.0363082885742
1985	88.7236785888672
1986	88.7238693237305
1987	84.7337417602539
1988	84.2269134521484
1989	85.087272644043
1990	84.1739730834961
1991	83.3205108642578
1992	84.1239318847656
1993	85.128776550293
1994	83.6685104370117
1995	85.0953063964844
1996	86.4692230224609
1997	87.1128921508789
1998	88.3845825195313
1999	82.9380111694336
2000	93.0867691040039
2001	97.3505477905273
2002	100.07347869873
2003	102.530288696289
2004	101.197662353516
2005	100.12850189209
2006	103.491508483887
2007	105.061012268066
2008	108.813056945801
2009	108.562103271484
2010	108.7979
2011	111.682
2012	112.8885
2013	113.001
2014	113.0241
2015	113.7792
2016	114.3661
2017	114.287
2018	114.7663