Year	Percent Change
2001-01-01	1.6092
2002-01-01	1.6804
2003-01-01	1.7756
2004-01-01	2.2266
2005-01-01	2.2214
2006-01-01	2.4892
2007-01-01	2.3189
2008-01-01	3.2677
2009-01-01	3.0125
2010-01-01	2.8871
2011-01-01	3.0421
2012-01-01	4.4982
2013-01-01	4.7949
2014-01-01	4.5866
2015-01-01	4.9413
2016-01-01	4.7236
2017-01-01	5.4388
2018-01-01	5.0943
2019-01-01	5.2439