Year Percent 1996-01-01 2.9987000000000000 1997-01-01 3.3533199999999996 1998-01-01 3.4341800000000005 1999-01-01 2.7520300000000000 2000-01-01 3.1838800000000000 2001-01-01 0.9425940000000000 2002-01-01 0.7303740000000000 2003-01-01 0.1115680000000000 2004-01-01 1.0266000000000000 2005-01-01 1.7351299999999998 2006-01-01 2.0487100000000000 2007-01-01 2.2107700000000000 2008-01-01 2.2070400000000000 2009-01-01 1.4478100000000000 2010-01-01 1.9380800000000000 2011-01-01 2.1652400000000003 2012-01-01 2.3154500000000000 2013-01-01 2.3941700000000000 2014-01-01 1.2607899999999999 2015-01-01 0.3025360000000000 2016-01-01 1.8620800000000000