Year	% of relevant age group
1970	98.12853
1971	98.81652
1972	101.3703
1973	103.7349
1974	103.0187
1975	105.7796
1976	107.3099
1977	108.637
1978	105.9294
1979	107.2855
1980	107.7241
1981	109.7794
1982	109.5182
1983	114.3915
1984	115.5194
1985	114.1789
1986	113.8792
1987	108.5968
1988	108.961
1989	108.3517
1990	108.2812
1991	108.7911
1992	109.1512
1993	109.6992
1994	109.4917
1995	109.7251
1996	111.2918
1997	111.7563
1998	112.5745
1999	112.9782
2000	113.1524
2001	112.5872
2002	111.9958
2003	115.6763
2004	116.4869
2005	118.7522
2006	118.587
2007	118.2961
2008	118.2299
2009	112.3228
2010	114.675
2011	112.4915
2012	110.3455
2013	109.2365
2014	107.4469
2015	107.4236
2016	107.5156
2017	105.3989
2018	106.4104