Year	% of total merchandise exports
1960	1.8500312807221377
1961	0.8333333333333334
1962	0.6897645286609054
1963	0.9831354458141117
1964	0.5837792758357078
1965	0.7019303083479569
1966	0.9984547723760846
1967	1.5139794452425681
1968	1.3819789939192924
1969	0.7587379244578963
1970	0.8389497332210054
1971	0.6954322743796428
1972	0.8827173239727442
1973	0.8563849943160288
1974	0.9240877953306303
1975	1.1486144754704928
1976	0.7177821707615551
1977	0.6539281597176172
1978	0.8051820268940637
1979	1.099561726719156
1980	0.9432451293315486
1981	0.9695369592541828
1982	1.369486234776379
1983	1.1703072623887236
1984	1.211709164384519
1985	1.3864546456967095
1986	1.2543885801246824
1987	1.0994754762123862
1988	1.057234257654702
1989	1.051469768282685
1990	1.4518704796751218
1991	1.6351631645465405
1992	1.5400328178784772
1993	2.066003962894736
1994	1.6465041033175376
1995	1.6636878395322414
1996	1.6985047248946759
1997	1.5520925858026204
1998	1.3604929834949657
1999	1.631626474065721
2000	1.47643295188656
2001	1.7498641202215264
2002	1.9678261715826133
2003	1.6838016471225021
2004	1.901696297423155
2005	2.353993391034461
2006	1.8058773873715899
2007	2.0871456765402554
2008	2.363368243295293
2009	2.820471804766316
2010	3.1185230677897167
2011	3.0448172898565424
2012	3.0627076407635365
2013	3.084633017979183
2014	3.1646992077341305
2015	3.214989645644545
2016	3.400881639818529
2017	3.701250809398546
2018	3.6760154954954953
2019	3.9312740706330103
2020	3.657936600813377