Year % 2010 12.638013591562 2011 11.9962582990471 2012 9.58298323972936 2013 28.5015872065165 2014 27.6621674747739 2015 31.2598192585033 2016 26.2047010070135 2017 25.1314932281845 2018 17.6386369565085 2019 16.0635781639282 2020 17.4533882746522 2021 13.9378377234442 2022 14.510900682669