Year	% of total merchandise exports
1960	1.0762173606210304
1961	0.7639892628536031
1962	0.7729468599033816
1963	0.9585889570552147
1964	1.5985130111524164
1965	1.140118968935889
1966	1.2213236507674534
1967	1.4825273561595482
1968	1.19739723653322
1969	1.9976640219098636
1970	2.2238896723029353
1971	1.5404088348838683
1972	2.3750378673129355
1973	1.8930333881652068
1974	2.1658268921307413
1975	2.8669928984051687
1976	2.2823008326159386
1977	1.0507214563760354
1978	1.0108336499384059
1979	0.373438570170575
1980	0.43337371588413165
1981	0.8055435253356431
1982	0.3586572947816806
1983	0.4899155167908823
1984	0.32675679549037406
1985	0.5942423287901513
1986	0.7888942894993012
1987	1.022528917084396
1988	0.986113298806006
1989	1.2365376638730587
1990	0.8989284729278981
1991	1.580979494597031
1992	3.8423845276398234
1993	2.7272913425768075
1994	3.8730276798590313
1995	3.842124760998247
1996	5.288361520567103
1997	3.681735596249257
1998	4.853479737408345
1999	3.317295708135285
2000	2.00441978427914
2001	2.5667502503157977
2002	2.3192234665228546
2003	3.4625054221929914
2004	4.300806154334768
2005	4.164959521005045
2006	3.4130049429164444
2007	3.629371147633757
2008	4.25146289422293
2009	4.379755593406671
2010	5.320942744304232
2011	6.711431995088568
2012	6.861071080086612
2013	7.7938650162740934
2014	7.302355816221165
2015	7.992554344112894
2016	4.97130499178072
2017	5.825134359136467
2018	5.961348315067814
2019	7.893645496151497
2020	8.73083028825488