Year	Percent
2002	0.3548
2003	0.8799
2004	0.977
2005	1.0113
2007	0.8419
2008	1.2538
2009	0.6318
2010	0.8686
2011	0.8007
2012	0.2941
2013	0.5098
2014	0.6754
2015	1.4036
2016	0.7482
2017	0.8518