Year	Percent
2005-01-01	6.92053162936542
2006-01-01	7.03603822173494
2007-01-01	7.20841178428752
2008-01-01	7.69932162681403
2009-01-01	10.09077854499280
2010-01-01	9.75722601465532
2011-01-01	9.84110632529241
2012-01-01	9.43586830231617
2013-01-01	9.47724657802335
2014-01-01	9.46780827809299
2015-01-01	8.61296366273152
2016-01-01	7.72837547546012
2017-01-01	6.90296652241407