Year Percent 1995-01-01 49.705600000000000 1996-01-01 13.245999999999999 1997-01-01 10.621500000000000 1998-01-01 11.700999999999999 1999-01-01 17.751800000000000 2000-01-01 20.270400000000000 2001-01-01 20.526300000000000 2002-01-01 18.028500000000000 2003-01-01 17.655500000000000 2004-01-01 14.842100000000000 2005-01-01 15.468100000000000 2006-01-01 18.075900000000000 2007-01-01 14.182300000000000 2008-01-01 10.068500000000000 2009-01-01 25.758100000000000 2010-01-01 27.114300000000000 2011-01-01 22.524800000000000 2012-01-01 26.392500000000000 2013-01-01 29.032200000000000 2014-01-01 27.405500000000000 2015-01-01 32.355800000000000 2016-01-01 46.055800000000000