Year Percent 1994-01-01 3.3163400000000003000 1995-01-01 3.2670500000000000000 1996-01-01 3.6183199999999998000 1997-01-01 4.0120700000000000000 1998-01-01 4.3168900000000000000 1999-01-01 4.1480500000000000000 2000-01-01 3.8624699999999996000 2001-01-01 0.0135750000000000000 2002-01-01 0.0132990000000000000 2003-01-01 0.0102270000000000000 2004-01-01 0.0114270000000000000 2005-01-01 0.0096950000000000000 2006-01-01 0.0103690000000000000 2007-01-01 0.0086330000000000000 2008-01-01 0.0063430000000000000 2009-01-01 0.0072349999999999990 2010-01-01 0.0081409999999999990 2011-01-01 0.0045060000000000005 2012-01-01 0.0073870000000000000 2013-01-01 0.0045579999999999996 2014-01-01 0.0065410000000000000 2015-01-01 0.0112250000000000000 2016-01-01 0.0105810000000000000 2017-01-01 0.0102120000000000000