Year	Percent Change
2000-01-01	32.8509
2001-01-01	38.5919
2002-01-01	12.2272
2003-01-01	16.3557
2004-01-01	7.2057
2005-01-01	7.2765
2006-01-01	9.9692
2007-01-01	13.1681
2008-01-01	20.4289
2009-01-01	6.4192
2010-01-01	6.4628
2011-01-01	12.4221
2012-01-01	5.7960
2013-01-01	5.0350
2014-01-01	6.0769
2015-01-01	5.7805
2016-01-01	5.9137
2017-01-01	7.3102
2018-01-01	6.3289
2019-01-01	6.0000