Year	% of total merchandise exports
1974	0.0018965975040776846
1980	0.0008825985112328313
1982	0.02920982895687786
1984	0.058792656664593074
1985	0.0024492267395492314
1994	0.005751754287248204
1995	0.0010392417690984045
1996	0.4409878127363999
1998	0.003289176143909389
2000	0.0010378386883716348
2001	0.008493165822121767
2002	0.04420883978524824
2003	0.17800889159550168
2004	0.0015888240208021057
2005	0.02763636967464484
2006	0.7259284351434357
2007	0.7930668232847955
2008	0.5445366029908216
2009	0.6967304769775401
2010	1.4065772040972264
2011	1.324015740515846
2012	2.301249233193987
2013	0.8023009399575525
2014	1.081197079781471
2015	1.78051159115593
2016	0.6483876185493892
2017	0.02723260827729221
2018	6.340845374981742
2019	0.31355186770241383
2020	0.010910008461773087