Year	% of total merchandise exports
1960	3.540989368245321
1961	2.9490828589500317
1962	2.576501700037779
1963	2.632480976211695
1964	2.5531651829871413
1965	2.6600212801702416
1966	2.710080905345709
1967	2.4274745988690176
1968	2.5042205965109736
1969	2.411873840445269
1970	2.2825578676642504
1971	2.300385109114249
1972	2.384366772971469
1973	2.6484774953392716
1974	3.7286995515695067
1975	6.113115391019592
1976	5.895110797071582
1977	5.795224330990989
1978	5.607824708572391
1979	4.09194493535485
1980	4.418880861370579
1981	5.69865659348462
1982	5.577709118739193
1983	5.187749777155979
1984	4.11997344019384
1985	3.3970154773169754
1986	2.406891278610892
1987	1.905278847855383
1988	1.9990409009343482
1989	1.927771075830792
1990	1.9819432859861472
1991	2.1672368877254464
1992	2.3464818648054124
1993	2.0437472417210065
1994	1.6372964513472124
1995	1.4439551904542764
1996	1.404478269680333
1997	1.4690010278278602
1998	1.411155188875965
1999	1.3594319964149675
2000	1.2467379515959311
2001	1.3288497167044628
2002	1.3484748784122491
2003	1.3533225911703404
2004	1.4598595112666626
2005	1.491365118388917
2006	1.3959794624354083
2007	1.309483912902079
2008	1.4646592409281913
2009	1.8024966241600555
2010	1.6213295115225683
2011	1.2773490876095628
2012	1.2924525340486706
2013	1.224958426982622
2014	1.274411200902149
2015	1.1926621437027318
2016	1.3522954612698221
2017	1.310984892521009
2018	1.1034736127238007
2019	1.0503633695221597
2020	1.1042136537138303