Year	% of total merchandise exports
1960	0.11708744968898646
1961	0.04055789639710687
1962	0.16467133043319676
1963	0.09852313815899665
1964	0.023799833877159535
1965	0.040031903071930504
1966	0.0682968848510253
1967	0.07138946174725491
1968	0.017037777864859754
1969	0.020283538476907195
1970	0.027512716066314443
1971	0.01923365828165039
1972	0.025430147785405224
1973	0.01579811652281557
1974	0.014272212541447714
1975	0.024850280804952593
1976	0.04939731982016264
1977	0.11783809384055023
1978	0.056218202239505896
1979	0.04387034302089627
1980	0.02537540425155535
1981	0.14882368888821185
1982	0.18163069443708812
1983	0.31477729651335284
1984	0.46359437817178206
1985	0.7442874279646606
1986	0.9512365985213329
1987	1.1239346139894597
1988	1.2415703961855022
1989	1.8718771974528865
1990	1.1502987770644864
1991	0.7711770100941797
1992	0.5915952545914978
1993	0.11394923544408957
1994	0.6980246081720454
1995	0.680966224582139
1996	0.9648196586910006
1997	0.8339964561748779
1998	0.5752469432705837
1999	0.7429347358505871
2000	0.3729191507951957
2001	0.2018361598967554
2002	0.3943855626347561
2003	0.45781346031663506
2004	0.46249519928585164
2005	0.4366666944558051
2006	0.5909646895233174
2007	0.5679524822513079
2008	0.6534989642652075
2009	0.6029510584804767
2010	0.516978761855098
2011	0.5335888435620338
2012	0.701366184982189
2013	0.6924203848644277
2014	0.6806594898906018
2015	0.8026167833327901
2016	0.763480044499845
2017	0.7914436238555348
2018	0.8852319043180488
2019	0.7490457089751029
2020	1.173769663199262