Year Percent Change 2000-01-01 1.5686 2001-01-01 1.4481 2002-01-01 0.7967 2003-01-01 0.9860 2004-01-01 1.2571 2005-01-01 4.1203 2006-01-01 3.0923 2007-01-01 5.4646 2008-01-01 6.3000 2009-01-01 4.6096 2010-01-01 4.4964 2011-01-01 4.9053 2012-01-01 3.1993 2013-01-01 2.7027 2014-01-01 3.1270 2015-01-01 3.6782 2016-01-01 3.4817 2017-01-01 1.5068 2018-01-01 2.5000 2019-01-01 3.7000