Year annual % growth 2012 4.892410783802674 2013 -8.867862981640215 2014 7.659536869824407 2015 7.301066380447779 2016 55.93699863874269 2017 26.128583400844988 2018 -72.62790960105912 2019 -7.507863249603048 2020 1.327554340435654 2021 -4.311491312818575