Year annual % growth 2011 4.280633741219873 2012 9.301092384642601 2013 -4.621460364294521 2014 2.928361941309319 2015 0.7352733968248657 2016 10.69546760465667 2017 2.8464331160624567 2018 8.411846867492073 2019 -10.43586903040486 2020 -0.2991723070409904 2021 -8.093404106010553