Year	% of total exports
2011	80.41653153733208
2012	81.73944836290971
2013	83.29052198759325
2014	85.20253231786744
2015	85.56153420908313
2016	83.87466005730224
2017	83.48718160667079
2018	85.2048449984768
2019	84.7379262431625
2020	78.86900761120343