Year % 2005 0.564453032698765 2006 0.574013140486956 2007 0.559225604529488 2008 1.35526208847002 2009 2.01806458457878 2010 2.14856125999861 2011 1.96838634633669 2012 1.70189150824109 2013 1.36517488167218 2014 1.01384449933768 2015 0.88872549882617 2016 0.947676353339703 2017 0.857013750175751 2018 0.901855193874304 2019 0.961493162441897 2020 1.10778271314938 2021 0.912575245358043 2022 0.721666972849021