Year	Percent
1990	1.05183
1991	1.05313
1992	1.05344
1993	1.05933
1994	1.05624
1995	1.02044
1999	0.98731
2000	1.00997
2001	1.01479
2002	1.01672
2003	1.02133
2004	1.02957
2005	1.0245
2006	1.02707
2007	1.01683
2008	1.01387
2009	1.01138
2010	1.01461
2011	1.01149
2012	1.01033
2013	1.0085
2014	1.00653
2015	1.00121