Year Percent 1995-01-01 5.293240000000000 1996-01-01 4.229019999999999 1997-01-01 5.821340000000000 1998-01-01 5.461450000000000 1999-01-01 4.954230000000000 2000-01-01 8.620910000000000 2001-01-01 7.422969999999999 2002-01-01 2.857280000000000 2003-01-01 9.016970000000000 2004-01-01 3.538750000000000 2005-01-01 -1.629680000000000 2006-01-01 16.309500000000000 2007-01-01 55.772400000000000 2008-01-01 90.315200000000000 2009-01-01 104.402999999999990 2010-01-01 106.662000000000000 2011-01-01 125.404000000000000 2012-01-01 71.203700000000000 2013-01-01 68.837300000000000 2014-01-01 51.511700000000000 2015-01-01 33.171700000000000 2016-01-01 19.017900000000000