Year	% of relevant age group
1971	102.40014
1987	107.15911
1988	109.72303
1989	106.0133
1990	106.00323
1991	109.75173
1992	108.31237
1993	103.63439
1994	98.22287
1995	96.24492
1997	100.22519
1999	100.77445
2000	98.86059
2001	101.45434
2002	101.25885
2003	105.83935
2004	102.51416
2005	100.53878
2006	104.76601
2007	105.0858
2008	101.1279
2009	103.30866
2010	101.08804
2011	103.47201
2012	105.05441
2013	107.51626
2014	105.61083
2015	103.21832
2016	104.92531
2017	105.378