Year	% of total merchandise exports
1960	0.08869966294128083
1961	0.2086749142942316
1962	0.017809439002671415
1970	0.02415333640248212
1971	0.004561529668725616
1972	0.0013981584429621264
1973	0.011243870597974909
1974	0.624274804263966
1975	0.18574804947545942
1976	0.4053435519470185
1977	0.05501362311035443
1978	0.09185601136934783
1979	0.0455996296073143
1980	0.1616614259997038
1981	0.1079676906037132
1982	0.01800188951649657
1983	0.14990215649286437
1984	0.20772921425334454
1985	0.10929083481199964
1986	0.021657535053185843
1987	0.052475398437532614
1988	0.1840187699261719
1989	0.1872539587735854
1990	0.31687375250301086
1991	0.35135816550148585
1992	0.23169871015009638
1993	0.2788972461029732
1994	0.18528811847555893
1995	0.22459576264640108
1996	0.01886496591436513
1997	0.0280428498340137
1998	0.02508837203623171
1999	0.030985805058682047
2000	0.18806059616588602
2001	0.04716674852853046
2002	0.07334834031443196
2003	1.1164821079557647
2004	1.0418293085053778
2005	1.1800181375112015
2006	0.8912451462404245
2007	0.7924586376684748
2008	0.9391745114085603
2009	1.2962025801188901
2010	1.6226040034169422
2011	1.742231396206566
2012	2.4391091086609347
2013	1.6083325102484236
2014	3.5428061822516845
2015	4.099024734241705
2016	7.203027505637164
2017	5.1318851031027926
2018	5.848981257548673
2019	7.494923914911064
2020	7.00336193474431