Year % 1993 5.21 1996 6.3 1998 11.22 1999 7.14 2000 10.56 2001 5.29 2003 8.47 2004 9.76 2005 10.08 2006 4.82 2007 4.77 2008 3.31 2009 2.85 2010 2.17 2011 2.42 2012 2.29 2013 2.74 2014 2.68 2015 3.29 2016 4.2 2017 6.27 2019 5.39 2021 5.76