Year	Percent
1973	1.03873
1974	1.03675
1975	1.04243
1976	1.04737
1977	1.04397
1978	1.03956
1979	1.0462
1980	1.05009
1983	1.03826
1984	1.04727
1985	1.04907
1986	1.04939
1987	1.04415
1988	1.05087
1989	1.04026
1990	1.04478
1991	1.04042
1992	1.02549
1993	1.027
1994	1.01881
1999	0.99059
2000	0.99514
2001	0.99564
2002	0.99155
2003	0.98779
2004	0.9991
2005	0.99997
2006	1.00263
2007	1.00651
2008	1.01152
2009	1.01291
2010	1.01357
2011	1.01202
2012	1.01204
2013	1.0108
2014	1.00927
2015	1.00823
2016	1.01292