Year	% of total exports
2002	0.8569328650767448
2003	0.7441729982564242
2004	0.8335687414193012
2005	0.7771426054948654
2009	0.45168031385742907
2010	0.4756525034218817
2011	0.35939121399661494
2012	0.38055812303320086
2013	0.4140956924560312
2014	0.46585868371314587
2015	0.42980612069112656
2016	0.5689983496228674
2017	0.888425160359535
2018	0.8090094376101007
2019	0.8696418029165969
2020	0.5663274475842045