Year	% of relevant age group
1970	60.0994682312012
1971	60.2612915039063
1972	60.4813804626465
1973	60.8994293212891
1974	61.720401763916
1975	67.4158935546875
1976	70.2565002441406
1977	70.3464736938477
1978	74.8318405151367
1979	73.1561889648438
1980	75.8250427246094
1981	77.6105117797852
1982	76.6637268066406
1983	75.1498565673828
1984	74.0069122314453
1985	74.7893829345703
1986	74.9767837524414
1987	73.9489135742188
1988	73.2218780517578
1989	73.1566162109375
1990	70.9986114501953
1991	69.6612777709961
1992	70.467170715332
1993	71.1728820800781
1994	73.1444778442383
1995	78.7866897583008
1996	81.3070602416992
1997	92.1167526245117
1998	88.8602600097656
1999	84.9940872192383
2000	93.7788314819336
2001	99.43359375
2002	104.368598937988
2003	105.544853210449
2004	107.636833190918
2005	112.371398925781
2006	112.125183105469
2007	115.79808807373
2008	122.95231628418
2009	118.425506591797
2010	117.6901
2011	120.5137
2012	120.0208
2013	121.5758
2014	123.5229
2015	122.9378
2016	123.2282
2017	122.1863
2018	120.5726