Year	% of relevant age group
1970	108.111
1971	108.7777
1972	111.3243
1973	113.9072
1974	115.6362
1975	117.8552
1976	119.4458
1977	120.5105
1978	118.3371
1979	119.6064
1980	119.5945
1981	122.3365
1982	121.7303
1983	126.7784
1984	128.7433
1985	127.2887
1986	125.5038
1987	116.9467
1988	117.537
1989	116.0234
1990	116.4666
1991	116.3515
1992	116.4655
1993	117.4676
1994	116.7362
1995	117.1749
1996	118.3988
1997	118.5853
1998	118.7054
1999	119.1524
2000	120.2262
2001	120.1221
2002	118.2595
2003	117.7203
2004	118.5145
2005	119.4524
2006	119.6444
2007	118.2024
2008	115.6322
2009	109.3625
2010	111.4829
2011	108.654
2012	107.0161
2013	105.8579
2014	104.2416
2015	104.8813
2016	105.841
2017	103.8447
2018	104.9085