Year	Percent
1993	1.02123
1994	1.01872
1995	1.018
1996	1.0185
1997	1.01689
1998	1.01785
1999	1.01576
2000	1.02922
2001	1.01121
2002	0.99826
2003	0.99127
2004	0.99455
2005	0.99038
2006	0.99246
2007	0.98918
2008	0.99092
2009	0.99331
2010	0.98985
2011	0.99059
2012	0.99536
2013	0.99943
2014	0.99919
2015	1.00326