Year Percent 2004-01-01 5.319 2005-01-01 5.369 2006-01-01 5.369 2007-01-01 5.369 2008-01-01 5.369 2009-01-01 5.369 2010-01-01 0.190 2011-01-01 0.170 2012-01-01 0.300 2013-01-01 0.380 2014-01-01 0.580 2015-01-01 0.790 2016-01-01 1.050