Year Percent 2001-01-01 1.53758000000000000 2002-01-01 12.14770000000000000 2003-01-01 4.06149000000000000 2004-01-01 6.75241000000000000 2005-01-01 3.47281000000000000 2006-01-01 8.97687000000000000 2007-01-01 5.67603000000000000 2008-01-01 0.57240300000000000 2009-01-01 0.18351600000000000 2010-01-01 0.18351600000000000 2011-01-01 0.37546199999999996 2012-01-01 0.78876400000000000