Year	% of total exports
2007	41.735142112059364
2008	47.261445690056505
2009	55.105314356036885
2010	51.09392343259343
2011	48.068875859273334
2012	50.57040480213857
2013	50.42448885054432
2014	52.05141456854565
2015	55.268099549217695
2016	54.81107982897466
2017	54.80565838322019
2018	52.1634671601858
2019	52.62629540951666
2020	14.42981702469276