Year Percent 2001-01-01 123.33200000000001 2002-01-01 120.15000000000000 2003-01-01 136.11200000000000 2004-01-01 157.96600000000000 2005-01-01 181.03599999999997 2006-01-01 246.99000000000000 2007-01-01 240.52000000000000 2008-01-01 155.57100000000000 2009-01-01 228.47200000000000 2010-01-01 272.09300000000000 2011-01-01 235.58900000000003 2012-01-01 292.79400000000004