Year % 2008 2.47019680774369 2009 3.7737094478324 2010 5.62295516381547 2011 9.19946087632775 2012 15.7182240298714 2013 27.8147390613922 2014 29.9945374662288 2015 35.7068688820245 2016 37.3561319650912 2017 45.5723195514792 2018 41.9878672308848 2019 36.4485402973695 2020 26.978044320607 2021 9.16143294899957 2022 6.52531432154818