Year	Percent
2005-01-01	1.12306816304321
2006-01-01	1.15671810199409
2007-01-01	1.21278135248144
2008-01-01	1.23379459796547
2009-01-01	1.66868361287220
2010-01-01	1.61471958167627
2011-01-01	1.61569510529058
2012-01-01	1.59155879776141
2013-01-01	1.61812893230912
2014-01-01	1.55006600303062
2015-01-01	1.44346035749462
2016-01-01	1.28023853020411
2017-01-01	1.17273381138342