Year Percent 2000-01-01 0.0061010000000000000 2001-01-01 0.0052200000000000010 2002-01-01 0.0047430000000000000 2003-01-01 0.0047430000000000000 2004-01-01 0.0047430000000000000 2005-01-01 0.0011450000000000000 2006-01-01 0.0018789999999999998 2007-01-01 0.0014500000000000000 2008-01-01 0.0010810000000000001 2009-01-01 0.0012550000000000000 2010-01-01 0.0009980000000000000 2011-01-01 0.3984110000000000000 2012-01-01 2.4394900000000000000 2013-01-01 3.7975700000000000000 2014-01-01 7.7717300000000010000 2015-01-01 9.8231200000000000000 2016-01-01 11.5886000000000000000