Year	% of total merchandise exports
1960	1.0683442746864902
1961	0.8991807163653599
1962	0.6580854739031541
1963	0.9841785261251155
1964	0.8926140202155788
1965	1.021713578878213
1966	0.7188086563593954
1967	0.7191012152661933
1968	0.6916837854150854
1969	0.7217464772129016
1970	1.0510205734414242
1971	1.492738659069485
1972	1.314097634183315
1973	1.4502203673779726
1974	0.6781444925707453
1975	0.7816822951878976
1976	0.6752126687890718
1977	0.7516948205995493
1978	0.7484038415423483
1979	0.6585534777820322
1980	0.7669829928388984
1981	0.7519349445647945
1982	0.5993517155184139
1983	0.7055180200370886
1984	0.77849590681008
1985	0.8852866988592013
1986	0.8509204477351823
1987	0.8903703070166415
1988	0.9896165736499997
1989	0.9867271784674189
1990	1.0619403596593993
1991	1.3898066058779064
1992	1.1282912173072255
1993	2.327927028443736
1994	2.721572004022088
1995	3.712510822490927
1996	3.7465950417138565
1997	4.615191884014336
1998	2.3476420493168475
1999	4.002085693633577
2000	6.863648727183536
2001	6.712267815278866
2002	7.544341524800825
2003	8.688099165783797
2004	9.983588479591607
2005	11.463712703939755
2006	10.942471359704
2007	15.167628815109335
2008	15.164630739274584
2009	13.78030314510006
2010	13.393405433569114
2011	13.695972441827042
2012	15.994217866391427
2013	17.736949665036075
2014	17.166429984316935
2015	14.51119460326668
2016	15.87476457494999
2017	18.837945323308194
2018	21.33910003008191
2019	20.837761167768466
2020	19.81644574799196