Year	Percent
2002	1.19562
2003	0.9023
2004	0.94154
2005	0.75718
2006	0.78478
2007	1.40027
2008	1.15727
2009	1.17367
2010	1.03174
2011	1.25795
2012	0.83259
2013	1.01624
2014	1.28285
2015	0.89159
2016	0.93583
2017	0.56862