Year Percent 1993-01-01 3547.0700000000000000 1994-01-01 2.0758799999999997 1995-01-01 4.1086700000000000 1996-01-01 2.5857799999999997 1997-01-01 3.2253800000000000 1998-01-01 3.6743600000000000 1999-01-01 2.3551000000000000 2000-01-01 2.2653500000000000 2001-01-01 2.5415200000000002 2002-01-01 2.7543900000000003 2003-01-01 3.0237700000000003 2004-01-01 2.6359500000000000 2005-01-01 4.4223600000000000 2006-01-01 6.0143100000000000 2007-01-01 7.5250000000000000 2008-01-01 6.7437900000000000 2009-01-01 7.5860600000000010 2010-01-01 9.3619100000000000 2011-01-01 7.5758100000000010 2012-01-01 6.8508300000000000 2013-01-01 6.6972600000000010 2014-01-01 5.9687600000000000 2015-01-01 6.4123100000000000 2016-01-01 7.6836699999999990