Year	% of total merchandise exports
1960	14.745461685624317
1961	15.036510807750716
1962	15.19968116940257
1963	14.649500163715079
1964	14.349779175888452
1965	14.890780478643759
1966	13.729562175084725
1967	12.81440654916675
1968	12.70180183301263
1969	13.27385029302309
1970	18.015223204125938
1971	17.056401266742142
1972	19.46140565486133
1973	17.560700989652904
1974	14.905952482277726
1975	17.12511420754976
1976	15.776231410849512
1977	15.496599703147151
1978	15.56484636930323
1979	14.011894106746544
1980	13.753190447603513
1981	12.550618787899563
1982	10.993274560998815
1983	10.508099292584024
1984	10.861591454354844
1985	10.736923551836096
1986	11.461811044375898
1987	10.295689243016588
1988	10.998163482064882
1989	9.747461242458188
1990	8.91796573659844
1991	7.265005958101385
1992	6.332743674458798
1993	4.589663429784713
1994	4.531215872962751
1995	4.961740821356533
1996	5.12928832654339
1997	3.429994911719801
1998	4.237868370273111
1999	3.3952362733035084
2000	2.747889746205917
2001	3.166444265717066
2002	2.7161153242934435
2003	1.9938840908414437
2004	2.2394547808544885
2005	2.1218095164220796
2006	1.7985528535866773
2007	1.699084702408402
2008	1.819876717742207
2009	3.030370386177755
2010	2.63514167045579
2011	3.3090255249547647
2012	1.8373309737442063
2013	1.6656524797239391
2014	1.4007299369536441
2015	1.1176412618811744
2016	0.9783359243571303
2017	0.9417423902087276
2018	0.7955080575464207
2019	0.6266337850090467
2020	0.495946122023428