Year Percent 1996-01-01 4.0952300000000000 1997-01-01 2.2788700000000000 1998-01-01 2.8261700000000003 1999-01-01 2.2484000000000000 2000-01-01 0.2017430000000000 2001-01-01 1.3392300000000000 2002-01-01 2.7553099999999997 2003-01-01 1.9863000000000000 2004-01-01 1.7154400000000000 2005-01-01 0.8459530000000001 2006-01-01 0.7579810000000000 2007-01-01 0.7814909999999999 2008-01-01 -1.3231300000000000 2009-01-01 0.1425710000000000 2010-01-01 0.8579770000000000 2011-01-01 2.0153600000000000 2012-01-01 2.2356900000000000 2013-01-01 2.3298900000000002 2014-01-01 1.8519200000000000 2015-01-01 1.6357700000000002 2016-01-01 1.5287000000000000