Year	% of total merchandise exports
1960	76.27824519033854
1961	76.4564370184654
1962	76.3159851840878
1963	76.52178735119821
1964	74.32332344830982
1965	73.58929502582858
1966	75.41475745341039
1967	76.78654371268135
1968	75.90627609577261
1969	76.06365484086223
1970	72.4117388875982
1971	72.30917007060103
1972	70.7727047366925
1973	72.42904931003474
1974	73.94705197642439
1975	70.5934987166281
1976	73.31952154321625
1977	73.08237678694702
1978	73.71196716854035
1979	75.20257561635346
1980	74.1253857991646
1981	71.40191780574702
1982	73.52135862344498
1983	74.55619371201027
1984	74.55454563535346
1985	74.87874061614835
1986	74.46786043737865
1987	75.61342361184734
1988	74.80278365790205
1989	76.8963705085858
1990	78.23892998821147
1991	80.38019695673817
1992	78.1603575440443
1993	78.59405247002955
1994	76.7207481625449
1995	74.98942813192406
1996	74.58054909281239
1997	75.95341448847856
1998	76.45959898132722
1999	78.81218610057341
2000	78.1753840649636
2001	77.23642723374905
2002	76.68216508423559
2003	76.1680859260914
2004	75.27786567079004
2005	74.44842001480244
2006	73.97596556011868
2007	71.21823201720585
2008	69.44134503213975
2009	68.1158815608093
2010	67.40597235697963
2011	65.6152385755351
2012	65.676402756106
2013	65.19933498688502
2014	65.36460388218437
2015	66.54113594091193
2016	66.50544994319523
2017	65.17659915411052
2018	64.74640149374885
2019	64.25639557935398
2020	64.72219035083087