Year % 1993 25.33 2000 9.03 2001 7.64 2002 20.12 2003 8.33 2005 14.18 2006 12.45 2008 12.91 2009 7.45 2010 8.03 2011 6.82 2012 9.41 2013 8.7 2014 8.9 2015 9.75 2016 7.33 2018 4.08 2019 9.55 2020 10.19 2021 11.97