Year Index 1999-01-01 0.00000000000000000 2000-01-01 4.80082000000000000 2001-01-01 4.27575000000000000 2002-01-01 3.12325999999999970 2003-01-01 2.68263000000000000 2004-01-01 3.14585000000000000 2005-01-01 0.99950599999999990 2006-01-01 2.43407000000000000 2007-01-01 2.81378000000000000 2008-01-01 0.36578099999999997 2009-01-01 0.25038200000000000 2010-01-01 0.22416500000000000 2011-01-01 0.32912399999999997 2012-01-01 0.38984400000000000 2013-01-01 0.54633599999999990 2014-01-01 0.65433800000000000