Year % 2001 28.85988 2002 18.98789 2004 26.45289 2005 8.276049 2006 8.513722 2007 29.44674 2008 13.99565 2009 11.04334 2010 10.73696 2011 10.98985 2012 5.208999 2013 12.27462 2014 12.13354 2015 10.56794 2016 23.913 2017 11.65512 2018 5.566353 2019 5.598673 2020 5.792881 2021 5.806206