Year	Percent
1999	1.0039
2000	1.01077
2001	1.0112
2002	1.01645
2003	1.02382
2004	1.021
2005	1.02161
2006	1.02439
2007	1.01898
2008	1.01752
2009	1.01433
2010	1.01182
2011	1.01679
2012	1.01915
2013	1.01842
2014	1.01616
2015	1.00882
2016	1.0081