Year	Percent
1993	1.03076
1994	1.02494
1995	1.02454
1996	1.02242
1997	1.01564
1998	1.01122
1999	1.01031
2000	1.01083
2001	1.0092
2002	1.00934
2003	1.00878
2005	1.02261
2006	1.02285
2007	1.0247
2008	1.02632
2009	1.02709
2010	1.04991
2011	1.02762
2012	1.02738
2013	1.02494
2014	1.02469
2015	1.03385
2016	1.03408