Year	Percent
1994	0.85942
1995	0.87968
1996	1.06822
1997	1.14605
1998	1.14233
1999	1.06757
2000	0.98353
2001	0.7969
2002	0.74323
2003	0.90824
2004	1.19304
2005	1.18252
2006	1.14224
2007	1.07169
2008	0.87869
2009	1.0673
2010	1.04834
2011	0.98914
2012	1.06252
2013	1.18
2014	1.32025
2015	1.42902
2016	1.55025
2017	1.44093