Year	% of relevant age group
1971	99.19319
1972	101.4945
1973	104.806
1974	110.8598
1975	109.7274
1976	110.8326
1977	107.0503
1978	104.4616
1979	102.0343
1980	103.0875
1981	105.6796
1982	104.3407
1983	103.4728
1984	101.9707
1985	105.0551
1986	101.7072
1987	101.1486
1988	101.5016
1989	99.50533
1990	99.9325
1991	102.5778
1992	101.3447
1993	99.97376
1994	101.5446
1995	101.449
1996	104.3625
1997	103.6456
1998	103.1482
1999	103.7956
2000	112.6414
2001	107.0814
2002	104.7702
2003	105.0199
2004	104.233
2005	101.8954
2006	105.9055
2007	105.5083
2008	104.3681
2009	104.3222
2010	106.5936
2011	106.2481
2012	105.3363
2013	104.9276
2014	105.607
2015	105.4862
2016	104.1722
2017	103.2109
2018	104.0825