Year	% of total merchandise exports
1960	43.87666473653734
1961	45.845169523376654
1962	42.64961602782238
1963	44.5842297259377
1964	44.72345768338618
1965	44.88670762968402
1966	40.80131414080251
1967	37.12872590899275
1968	39.81036324786324
1969	40.20882648594312
1970	52.52707581227437
1971	49.9981945439117
1972	50.82627503553392
1973	47.334617686504245
1974	43.27085875482045
1975	45.11659820849508
1976	43.289386054721604
1977	46.43201577289015
1978	45.4836020067887
1979	43.8594424411901
1980	40.35830797103148
1981	34.84050556190202
1982	30.62859505017603
1983	30.5660786893207
1984	31.482362667174247
1985	32.792138127532155
1986	34.09532171404368
1987	29.61446378950004
1988	28.243567237807582
1989	28.380579865000875
1990	19.784931217030692
1991	16.35576533103725
1992	8.9888182371515
1993	3.4659938723198005
1994	3.2780601235253823
1995	3.702388812633578
1996	3.4409553168275147
1997	2.14628686909554
1998	2.2289199929430223
1999	2.3068088251035404
2000	2.424183025783131
2001	2.2538635030074423
2002	2.20035680698707
2003	1.824070973665395
2004	1.5951579261727533
2005	1.5939834217326783
2006	1.3642334260538898
2007	1.137273699847594
2008	0.8174688038283808
2009	7.409696765057077
2010	6.102994177796927
2011	7.759129376127616
2012	0.7219885961533289
2013	0.5421774062424553
2014	0.4114116942967202
2015	0.43011707024178547
2016	0.7668004481645486
2017	0.7407665874238787
2018	0.6718253630802324
2019	0.8618322990131324
2020	0.948265654588846