Year	% of total merchandise exports
1960	66.52131100945891
1961	68.44215464745352
1962	70.98296457171884
1963	71.87847781223326
1964	72.18780832160766
1965	72.35948142514079
1966	72.07760044558968
1967	72.11386019913051
1968	72.88064179427774
1969	73.30746752917385
1970	73.69126896867971
1971	74.03946840706364
1972	74.87157894716259
1973	74.5967136086268
1974	71.9495453319365
1975	68.40938962657962
1976	70.16665631705798
1977	70.2333366040296
1978	70.95391694248228
1979	72.47545989815961
1980	71.25740208420804
1981	69.46090253983496
1982	71.36736640275846
1983	72.59180572880928
1984	74.3984102817109
1985	75.21446027009344
1986	77.42066580030425
1987	78.92843929230482
1988	79.38563283021095
1989	79.64174449152034
1990	79.28799725233877
1991	79.77505328650378
1992	79.99485273273974
1993	79.64935294412608
1994	80.50603599298246
1995	80.74814667849341
1996	80.51665334173853
1997	81.20706635838091
1998	82.64411728591993
1999	88.80544928159624
2000	88.42349569636441
2001	88.0350140165165
2002	87.8025480345453
2003	87.65687360266627
2004	86.78794747045939
2005	86.08379753855634
2006	85.54343680072725
2007	84.82550445263628
2008	83.62342962206345
2009	83.20504060322746
2010	82.38470631978346
2011	81.72483251927994
2012	80.68523191304101
2013	80.54008801593487
2014	81.31252550222644
2015	82.57703997197275
2016	82.93696746168553
2017	82.29027117674244
2018	82.47146782106482
2019	82.70250092569894
2020	83.01848457566847