Year % 1995 6.3 1996 6.62 1997 6.9 1998 5.81 2000 6.34 2001 4.62 2002 4.29 2003 4.01 2004 1.7 2005 6.08 2006 12.95 2007 11.91 2008 11.46 2009 9.79 2010 9 2011 10 2012 9.8 2013 9.67 2014 9.96 2015 10.01 2016 10.38 2017 10.33 2018 10.33 2019 10.63 2020 10.63 2021 10.3