Year annual % growth 2011 2.8324195371029077 2012 8.325278034982048 2013 4.9285653901428645 2014 4.918179539513716 2015 3.437654647531602 2016 1.144096806922306 2017 3.5394477156698088 2018 4.034481482064933 2019 2.2811173435161862