Year Percent 2000-01-01 1.3300000000000000 2001-01-01 1.3100000000000000 2002-01-01 1.3100000000000000 2003-01-01 1.1440000000000001 2004-01-01 1.1210000000000000 2005-01-01 0.9790000000000001 2006-01-01 0.7600000000000000 2007-01-01 0.8300000000000000 2008-01-01 0.8300000000000000 2009-01-01 1.1000000000000000 2010-01-01 1.1500000000000000 2011-01-01 1.1400000000000000 2012-01-01 1.1100000000000000 2013-01-01 1.2100000000000000