Year Percent 1995-01-01 0.17088699999999998 1996-01-01 3.62511000000000000 1997-01-01 8.03418000000000100 1998-01-01 8.60098000000000000 1999-01-01 8.78483999999999900 2000-01-01 10.04770000000000000 2001-01-01 8.07630000000000000 2002-01-01 5.62563000000000000 2003-01-01 5.31177000000000000 2004-01-01 4.44539000000000000 2005-01-01 14.66730000000000000 2006-01-01 13.02120000000000000 2007-01-01 10.69810000000000000 2008-01-01 8.85784000000000000 2009-01-01 7.17823000000000000 2010-01-01 6.41995000000000000 2011-01-01 6.26768000000000000 2012-01-01 5.46976000000000000 2013-01-01 5.40555999999999950 2014-01-01 5.33414000000000050 2015-01-01 1.04932000000000000 2016-01-01 0.98941200000000010