Year % 2002 0 2003 1.561347 2004 0.1305854 2005 0.6796172 2006 0.8740626 2007 0.9948269 2008 1.421961 2009 1.25981 2010 0.7441305 2011 0.7441305 2012 2.724451 2013 2.744908 2014 0 2015 1.594005 2016 1.594005 2017 2.947673 2018 3.41408 2019 3.402312 2020 2.147022 2021 2.242152