Year	% of total merchandise exports
1960	1.922727884385173
1961	2.112451135490267
1962	1.877881174699036
1963	1.6762268188206315
1964	2.051266824514712
1965	1.9050507123293363
1966	1.9697058020166243
1967	1.7244122436306148
1968	1.5417984851127977
1969	1.7658401947048534
1970	1.4939799736983994
1971	1.8761920594251087
1972	1.9078811010563488
1973	1.7839932170383412
1974	1.6026789381003104
1975	1.6872811776673338
1976	1.5512917080191573
1977	1.84912981023795
1978	2.2295463723516264
1979	2.263069850341258
1980	2.1559208162451466
1981	1.9790031349543924
1982	2.071515933960263
1983	2.1294886243708273
1984	2.00974500409231
1985	2.4995439577108134
1986	2.673747713913473
1987	2.6725361455701577
1988	3.2546612274963422
1989	3.295622058734884
1990	3.128980038999771
1991	3.1559495718900528
1992	3.9595327599573973
1993	4.62407009365181
1994	4.6080853337044605
1995	5.048590795477995
1996	5.222192437436993
1997	5.356854145435585
1998	4.555825908960018
1999	4.873499798848474
2000	5.592856256351074
2001	5.87403324303772
2002	6.60046508359917
2003	7.266739845887109
2004	7.420916866420487
2005	7.586826455371577
2006	7.610393605258851
2007	8.377716807687245
2008	8.56513731488621
2009	9.946761282591577
2010	10.734752936448682
2011	11.397589328676718
2012	11.902567217928492
2013	12.482096674514317
2014	12.357035920788974
2015	12.346601949395037
2016	12.674823416125355
2017	13.700928321774846
2018	14.49565712127139
2019	15.087826909254352
2020	15.552134552093444