Year Percent 1996-01-01 5.9190300000000000 1997-01-01 8.1017400000000000 1998-01-01 8.6353400000000000 1999-01-01 10.2534000000000000 2000-01-01 13.8000000000000000 2001-01-01 7.8441399999999994 2002-01-01 7.4972699999999990 2003-01-01 9.1510400000000000 2004-01-01 11.4584000000000000 2005-01-01 11.8646000000000000 2006-01-01 26.2986000000000000 2007-01-01 14.6174000000000000 2008-01-01 4.7608300000000000 2009-01-01 4.3804600000000000 2010-01-01 4.6275800000000000 2011-01-01 3.5290100000000000 2012-01-01 4.7314099999999994 2013-01-01 -0.7874130000000000 2014-01-01 4.6585500000000000 2015-01-01 6.9168300000000000 2016-01-01 4.7145600000000000