Year annual % 2011 -3.7247877858821283 2012 0.32092057984176847 2013 -2.3185629213955394 2014 1.7087562628053803 2015 -0.4566361309299367 2016 -2.337455763557344 2017 1.611209668415853 2018 -0.5990596179465228 2019 -0.5727172145036263