Year	Percent Change
2001-01-01	0.7505
2002-01-01	0.6372
2003-01-01	0.7914
2004-01-01	0.6879
2005-01-01	0.8838
2006-01-01	2.3418
2007-01-01	2.3283
2008-01-01	6.0052
2009-01-01	1.6007
2010-01-01	2.6971
2011-01-01	3.6234
2012-01-01	3.4099
2013-01-01	3.3793
2014-01-01	4.5505
2015-01-01	3.3543
2016-01-01	2.1155