Year	% of relevant age group
1970	139.8448
1971	144.3298
1972	145.5349
1973	145.1384
1974	144.4765
1975	144.6533
1976	139.9732
1977	140.673
1978	141.7173
1979	154.8488
1980	146.6167
1981	145.1841
1982	144.3361
1983	137.5984
1984	141.4916
1985	136.7006
1986	128.4839
1987	131.6058
1988	137.5053
1989	128.5767
1990	138.9454
1991	125.3693
1992	123.7943
1993	127.9776
1994	128.0466
1995	123.8668
1996	121.8748
1997	122.1989
1998	122.1661
1999	117.2017
2000	119.3446
2001	121.9236
2002	120.4713
2003	118.9116
2004	117.864
2005	122.2508
2006	114.2517
2007	113.0639
2008	111.4816
2009	108.6567
2010	103.9568
2011	101.9444
2012	98.61746
2013	100.4979
2014	100.6142
2015	100.3209
2016	100.7209
2017	100.6266
2018	100.7657