Year	% of total merchandise exports
1960	15.220012055455094
1961	17.542242703533027
1962	12.598208132322537
1963	10.069317767238234
1964	12.0267016852703
1965	9.847832328452483
1966	14.745469584179261
1967	14.961603540283743
1968	10.93269559275709
1969	9.281450563260178
1970	7.187873952931791
1971	7.021269066072124
1972	6.6872102064913745
1973	7.521704814522494
1974	8.202262231443678
1975	7.402806075966141
1976	6.811874231512384
1977	8.19672131147541
1978	8.047054738030125
1979	9.561676867633398
1980	13.801660007393565
1981	16.928000146499354
1982	17.64062022025084
1983	18.467005168522967
1984	23.183227458546583
1985	30.091921618455796
1986	25.377621372763926
1987	27.125570282489363
1988	30.565437286781982
1989	29.780812874701496
1990	29.074104097137848
1991	31.132765611241314
1992	33.681285469526664
1993	35.91985297263329
1994	36.716240348115925
1995	37.435877778863194
1996	38.49401473189525
1997	38.95470387972156
1998	37.8021397522439
1999	36.986260102688256
2000	38.26346953918418
2001	40.66023715443091
2002	43.584084354845146
2003	46.627160978843065
2004	48.010403974204294
2005	48.79488684184165
2006	50.84430563152213
2007	52.907876433695655
2008	52.897330932487044
2009	55.45525514559635
2010	57.282131815189295
2011	57.340795200363445
2012	59.10894139782156
2013	59.79223646951747
2014	59.314890750058545
2015	61.18847224150728
2016	59.824410823538564
2017	60.656728672820826
2018	61.72127035675003
2019	61.775931756210724
2020	60.87880406676882