Year Percent 2003-01-01 0.0012519999999999999 2004-01-01 0.0500000000000000000 2005-01-01 0.1600000000000000000 2006-01-01 0.3200000000000000000 2007-01-01 0.4300000000000000000 2008-01-01 0.6400000000000000000 2009-01-01 0.9000000000000000000 2010-01-01 1.0400000000000000000 2011-01-01 1.0300000000000000000 2012-01-01 1.2900000000000000000 2013-01-01 1.4400000000000000000 2014-01-01 1.8400000000000000000 2015-01-01 2.0500000000000000000 2016-01-01 2.1100000000000000000