Year	% of total merchandise exports
1960	83.07804522246536
1961	83.31158947597304
1962	83.01520173734141
1963	85.5547600673169
1964	86.11005868473985
1965	85.4827864289636
1966	83.98843462575879
1967	78.82105141112474
1968	78.55037244774945
1969	78.59815537548785
1970	84.53052421129263
1971	81.44639817742228
1972	82.29495548726815
1973	82.93378569107426
1974	86.75558439067495
1975	85.3150453384844
1976	85.89472420375695
1977	84.76334496084147
1978	84.08281271479744
1979	82.87281224759236
1980	80.19766320694109
1981	81.73051852484289
1982	81.72893419552362
1983	82.73537058586842
1984	81.93724309063326
1985	80.73312324170506
1986	84.10802960027503
1987	83.25260602619929
1988	76.23319133659034
1989	76.33609542111004
1990	71.84494588495473
1991	82.37116606940113
1992	82.1845007276189
1993	80.86581498142345
1994	74.22403051897908
1995	72.71745514617491
1996	72.89739379861835
1997	71.5576787113894
1998	70.89972570017385
1999	72.4066972283056
2000	81.70996310009657
2001	82.24362915752168
2002	81.10357548516386
2003	81.0664027184509
2004	78.27367321025858
2005	77.09241019182498
2006	75.06902737085723
2007	75.73903553519095
2008	75.70314948516264
2009	74.86802842505091
2010	75.84539431945942
2011	75.99203876589247
2012	74.27041517546064
2013	71.97939230677497
2014	69.6322539433136
2015	70.22639288916211
2016	66.89943782008562
2017	64.9359946671837
2018	63.81500111796461
2019	63.57454036788499
2020	61.29859213669173