Year	% of total merchandise exports
1969	0.015630166220806156
1970	0.09204166221303785
1971	0.08455890223278316
1972	0.01974103807489446
1973	0.012071365915291201
1974	0.0296771358865948
1975	0.00928437373583304
1980	0.00012089486378171224
1981	0.03043398029640769
1982	0.004066503906102919
1984	0.04748517062540136
1986	0.0018209321351599882
1999	0.005173136362319005
2000	0.009780304688931664
2001	0.043802561106080044
2002	0.04181167160719403
2003	0.023410632809778113
2004	0.004583088446186988
2005	0.0190867079294233
2006	0.031303616959299355
2007	0.034823900094920736
2008	0.06171699021032478
2009	0.046404100295943995
2010	0.062072658624291815
2011	0.12394429824800972
2012	0.07881527729576349
2013	0.1394874440377364
2014	0.2576671626168428
2015	0.07224486738106067
2016	0.21184052399728362
2017	0.07658198059873034
2018	0.07115204311574833
2019	0.422988734520118
2020	0.10731311208099793