Year	Percent
1993	1.00577
1994	0.28274
1995	0.5904
1996	0.66488
1997	1.81437
1998	1.8632
1999	1.56882
2000	1.6667
2001	1.38841
2002	1.45179
2003	1.42657
2004	1.09375
2005	1.15436
2006	1.70205
2007	1.6711
2008	1.66495
2009	1.61645
2010	1.60508
2011	1.59952
2012	1.57994
2013	1.5954
2014	1.58616
2015	1.2611
2016	1.27309
2017	1.31874
2018	1.35343
2019	1.40071
2020	1.39279