Year % 1995 8.94 1998 8.87 1999 12.53 2000 12.88 2001 12.45 2002 8.61 2003 11.83 2004 8.87 2005 8.14 2006 8.24 2007 7.96 2008 7.82 2009 8.72 2010 9.61 2011 6.8 2012 6.76 2013 9.39 2014 7.56 2015 7.42 2016 7.75 2017 10.67 2018 13.1 2019 21.09