Year	% of total merchandise exports
1960	1.1394712853236098
1961	1.2464817048652996
1962	1.0230179028132993
1963	1.0740721955527444
1964	1.0550834733347942
1965	1.3270715217824045
1966	1.4383988565870678
1967	1.3888064573565198
1968	1.2398231185684176
1969	2.125677625404474
1970	1.8590452372820194
1971	1.8029462462157975
1972	1.4089082195828984
1973	1.4275440525099499
1974	1.667832992093476
1975	1.4680490193736413
1976	1.9989174162550705
1977	2.7621363032817294
1978	1.9564089740590251
1979	1.7515177411967306
1980	1.7220650120461467
1981	1.5978968451733317
1982	1.4436656161124943
1983	2.0442911383971767
1984	2.4490057929481766
1985	2.3476778144983417
1986	2.6521699469978417
1987	2.754617092991938
1988	2.697446927512773
1989	2.0346161098437725
1990	2.158132039990104
1991	3.3765555825665516
1992	2.690794410917624
1993	2.6092201937361557
1994	2.3713304323290196
1995	1.7021319107547208
1996	1.512212508502106
1997	1.425721810554962
1998	1.5578224628340784
1999	1.2673293886827313
2000	0.8602432951821668
2001	0.9792597232350199
2002	1.8461072604785305
2003	0.8455510236507355
2004	0.9153863287814666
2005	0.8850484262878431
2006	0.7965540068938306
2007	0.7507560896690276
2008	0.762414857074341
2009	0.983997552931988
2010	1.3618362418281587
2011	0.84203813938629
2012	1.1252186333289222
2013	0.9560189837404189
2014	1.5337136150618433
2015	1.8913748351270256
2016	2.242059785657349
2017	2.1770703645431344
2018	1.9062286381882116
2019	1.3394912722867287
2020	1.2279915751030948