Year	% of relevant age group
1972	88.24318
1973	89.15915
1974	87.38668
1975	93.83936
1976	98.94104
1977	100.9064
1978	103.6045
1979	102.1066
1980	102.9831
1981	104.3643
1982	102.2233
1983	104.7959
1984	102.0823
1985	101.8043
1986	102.1075
1987	100.3349
1988	98.5151
1989	95.36446
1990	93.72278
1991	92.64495
1992	92.63744
1993	92.83259
1994	94.56692
1995	97.98826
1996	100.1861
1997	106.6627
1998	104.827
1999	101.1114
2000	107.9813
2001	110.7456
2002	115.6727
2003	116.0615
2004	116.014
2005	118.5252
2006	119.5303
2007	119.396
2008	124.4537
2009	121.7117
2010	121.992
2011	126.8972
2012	125.3301
2013	125.6163
2014	126.1047
2015	125.6381
2016	123.9292
2017	122.5908
2018	121.9323