Year	% of total merchandise exports
1960	0.09822142054834213
1961	0.026725176987484597
1962	0.22001317490659145
1963	0.16499320777961307
1964	0.08986247088006631
1965	0.1881251009789145
1966	0.06786987161971153
1967	0.07900060587387736
1968	0.029715644760667605
1969	0.012337232907636725
1970	0.05656228477376264
1971	0.021847614812792907
1972	0.06590178313827076
1973	0.0506615802006382
1974	0.07448677640096171
1975	0.128841978628454
1976	0.15168516100734075
1977	0.3009207561625346
1978	0.17666015803995097
1979	0.17213966925431182
1980	0.126697210222253
1981	0.29921416684030205
1982	0.4788215383335498
1983	0.2786969913839129
1984	0.22176763043945544
1985	0.26957597957835866
1986	0.34472261745357474
1987	0.285230941414512
1988	0.4224194093910078
1989	0.7483100931903865
1990	0.2615750102830679
1991	0.12007166790005093
1992	0.13254821990303137
1993	4.529991056138316
1994	0.9726409878229961
1995	1.1943132466320605
1996	0.48631888137830315
1997	0.7078698882656217
1998	0.42883938415126754
1999	0.5840304425662209
2000	0.47302550940347765
2001	0.3151434524160292
2002	0.4231080158312081
2003	0.34413896734913024
2004	0.33680688373485806
2005	0.3344554441859051
2006	0.47913450077866515
2007	0.5216347110568458
2008	0.6114625618970279
2009	0.6756813516217629
2010	0.6687608546031342
2011	0.7381647720958822
2012	0.705000883101298
2013	0.7858385773450374
2014	0.8707690390125924
2015	1.0418124594461986
2016	1.2323751726926244
2017	1.1833791704776768
2018	1.155523012092791
2019	1.1155265816850788
2020	1.681079133352913