Year	% of total merchandise exports
1960	1.4644351464435146
1961	1.2681159420289856
1962	0.8532423208191127
1963	0.6811989100817438
1964	0.6335797254487857
1965	1.1428571428571428
1966	0.9930486593843099
1967	0.6672226855713094
1968	0.9463722397476341
1969	3.8562735282608984
1970	2.067138683962965
1971	1.9121400743361248
1972	2.0743708811546484
1973	1.6101115839932294
1974	0.42650768770971376
1975	0.379637581997365
1976	0.24662052400477918
1977	0.22642414455989923
1978	0.2138552557548106
1979	0.4897259200067474
1981	0.42186024482015044
1982	0.5089808114553592
1983	1.9038966146168814
1984	1.085421067172892
1985	2.344883308536435
1986	2.7796417789646473
1987	1.4338914867569847
1988	2.466689530202574
1989	1.7627570496086071
1990	2.839969612092579
1991	0.8624467938503685
1992	1.0585907250403168
1993	1.2676015511038141
1994	3.311089746251043
1995	2.3164795308363684
1996	0.701391083307954
1997	0.7035814804810291
1998	0.8970832552534108
1999	0.639810868709438
2000	0.4240676395137739
2001	0.5067011471945789
2002	0.6871485518741681
2003	0.45585622835493816
2004	1.0558011948773027
2005	0.464517170425497
2006	0.47527483995111214
2007	0.9205066009413516
2008	0.5099103162210056
2009	0.7119249567693796
2010	0.6686531203562025
2011	0.7131228499749319
2012	0.6247605282076177
2013	0.7001487200308275
2014	0.5649175828076591
2015	0.8013717377418501
2016	0.9081114429342533
2017	0.9147546488444837
2018	0.7033320461607193
2019	0.6494640072430393
2020	1.3153396878274053