Year % 1994 0.658376 1999 0.930525 2000 1.254122 2001 1.578681 2002 0.6706671 2003 1.228246 2004 1.514631 2005 0.6447852 2006 0.7255766 2007 1.310558 2008 1.474719 2009 1.810865 2011 2.050729 2012 1.401384 2013 1.401384 2014 0 2015 1.799632 2017 0.3532505 2020 1.074547