Year	% of total merchandise exports
1960	68.29174006963899
1961	69.71529668955233
1962	67.76865226400028
1963	66.34848948718279
1964	69.42965008632189
1965	68.59487517715114
1966	71.97505457622937
1967	72.17492314152594
1968	69.89861864085877
1969	72.5203034773073
1970	70.11950655936246
1971	71.98508418760993
1972	67.93278791615003
1973	68.43916639963115
1974	69.53260819308305
1975	64.68017047746721
1976	73.75011104813903
1977	72.49051579628218
1978	65.95839079146123
1979	62.70322972299125
1980	59.07980836924508
1981	63.3750302016385
1982	69.38986856147581
1983	68.60073161784199
1984	69.58560879323538
1985	68.19463639778182
1986	67.76822605209756
1987	68.12645410530469
1988	70.25494044764018
1989	68.0648972529268
1990	71.65310660366215
1991	69.0103412257054
1992	69.79882865588094
1993	66.8473681699336
1994	66.14348904716402
1995	64.07082125000679
1996	64.27392962383196
1997	71.91035999348613
1998	75.21089572141533
1999	68.96627092001923
2000	61.413075249639434
2001	62.10150730065011
2002	59.8636600968362
2003	59.84587488642923
2004	56.69294174273682
2005	53.28571410837968
2006	56.13550754418355
2007	48.19212991457127
2008	46.63076497233003
2009	53.287915922562114
2010	52.244082913948674
2011	51.690987913844545
2012	43.955966046295956
2013	44.964576016487875
2014	45.152410707212404
2015	48.78395559938982
2016	47.717379173606
2017	46.12910489075083
2018	44.92519073424513
2019	48.71504607293844
2020	51.18207045866485