Year	Percent
1993	1.02289
1994	1.02306
1995	1.03182
1996	1.0219
1997	1.01978
1998	1.01099
1999	1.01025
2000	1.00838
2001	1.00672
2002	1.00547
2003	1.00175
2004	1.00602
2005	1.00381
2006	1.00375
2007	1.00458
2008	1.00567
2009	1.00741
2010	1.00564
2011	1.00298
2012	1.00123
2013	1.00761
2014	1.00516
2015	1.00477