Year Percent 1996-01-01 10.849400000000000 1997-01-01 9.240089999999999 1998-01-01 6.325860000000000 1999-01-01 8.949830000000000 2000-01-01 11.932100000000000 2001-01-01 34.439300000000000 2002-01-01 19.172900000000000 2003-01-01 20.648800000000000 2004-01-01 11.842900000000000 2005-01-01 13.459800000000000 2006-01-01 25.702400000000000 2007-01-01 5.850219999999999 2008-01-01 -38.939800000000000 2009-01-01 -7.090530000000000 2010-01-01 9.842260000000001 2011-01-01 3.782150000000000 2012-01-01 7.029580000000000 2013-01-01 7.551139999999999 2014-01-01 9.444760000000000 2015-01-01 11.456600000000000 2016-01-01 10.827600000000000