Year Percent 2003-01-01 0.5410930000000000 2004-01-01 0.5569270000000001 2005-01-01 3.5336000000000000 2006-01-01 3.6542600000000000 2007-01-01 3.0046700000000000 2008-01-01 1.8724599999999998 2009-01-01 4.2025400000000000 2010-01-01 3.6553300000000000 2011-01-01 2.4961800000000000 2012-01-01 3.9741699999999995 2013-01-01 1.9420500000000000 2014-01-01 7.2175100000000010 2015-01-01 8.2139000000000000 2016-01-01 12.5320000000000000