Year	% of total merchandise exports
1960	1.477583240562696
1961	1.566951566951567
1962	1.8950040801523256
1963	1.7583565459610029
1964	1.4967041488949204
1965	1.3254786450662739
1966	1.3948854201262038
1967	1.2649973917579551
1968	1.101052116466846
1969	1.2191254712659878
1970	1.4290669441553936
1971	1.6475289187137057
1972	1.4336516209594778
1973	1.676785877498792
1974	2.477662496516833
1975	3.029729596951893
1976	2.696573095208553
1977	3.204085704858426
1978	3.052838212879387
1979	3.3042516720762376
1980	4.311231191193793
1981	3.9374760014445522
1982	4.160200215850065
1983	3.4263685009617864
1984	3.2215202269597834
1985	2.5903209316618496
1986	1.5793640846297525
1987	1.6391574958326505
1988	1.3883526331640543
1989	1.5407370061926646
1990	1.8184378586683199
1991	1.8043323124552122
1992	1.5900322707772578
1993	1.4564188341297608
1994	1.278983658952579
1995	1.201137048469687
1996	1.1573643498795483
1997	1.176200130030339
1998	1.1211389352694132
1999	1.2049569890852603
2000	1.2045171538759611
2001	1.207058683505753
2002	1.2204607425703344
2003	1.2306699879771523
2004	1.570240642669816
2005	1.788475378314041
2006	1.7304169510558773
2007	1.8124535490591873
2008	1.8791228302493732
2009	1.7261777237863114
2010	1.6941378166239949
2011	1.2901191939964185
2012	1.4695479371969378
2013	1.7443657766672667
2014	1.3717643122673069
2015	1.4712467020515492
2016	1.5772011625085902
2017	1.5140623116511573
2018	1.9483446215155769
2019	1.3573322896256674
2020	1.2492304005763002