Year Percent 1995-01-01 9.2905699999999990 1996-01-01 5.1165100000000000 1997-01-01 3.7428300000000000 1998-01-01 2.9681000000000000 1999-01-01 30.2112000000000000 2000-01-01 1.3500100000000000 2001-01-01 9.9102000000000000 2002-01-01 21.3191000000000000 2003-01-01 14.6907000000000000 2004-01-01 7.6550199999999995 2005-01-01 6.8615200000000000 2006-01-01 7.0076600000000004 2007-01-01 2.2917400000000003 2008-01-01 4.9521400000000000 2009-01-01 75.1808000000000000 2010-01-01 103.2539999999999900 2011-01-01 75.7974000000000000 2012-01-01 88.2035000000000000 2013-01-01 78.2029000000000000 2014-01-01 55.2166000000000000 2015-01-01 52.8462000000000000 2016-01-01 57.5368000000000000