Year	Percent
1999	1.01192
2000	0.99266
2001	0.99949
2002	0.989
2003	0.97706
2004	0.95291
2005	0.96339
2006	0.96798
2007	0.98676
2008	1.00585
2009	1.00444
2010	1.0146
2011	1.00871
2012	1.02156