Year	% of total merchandise exports
1960	9.26869678965034
1961	7.659507703008646
1962	8.219963100249563
1963	7.499135351150124
1964	9.640656740080683
1965	9.288135566562586
1966	8.654748707362925
1967	8.339490760482098
1968	8.64486150840257
1969	7.013736848190123
1970	6.952671345984948
1971	6.852297837979348
1972	6.060359036072707
1973	4.450355229474696
1974	4.9894929217748745
1975	6.2001449502322385
1976	4.649522337065258
1977	4.403546040687254
1978	4.910690959456192
1979	4.228157911095207
1980	5.509404139411271
1981	7.61614326948728
1982	5.456909093783582
1983	6.548056531544104
1984	5.8845135891989
1985	6.61450768122193
1986	5.348407968277656
1987	5.643649987467013
1988	6.245494741688946
1989	5.299593446637573
1990	5.821112298292612
1991	6.472903525802219
1992	7.795441918498263
1993	8.539519654181351
1994	8.099511768199976
1995	9.658208472563745
1996	9.547920559803057
1997	10.713636124792018
1998	9.991408428291624
1999	10.670962247866084
2000	12.549284525199095
2001	13.230366091368746
2002	14.18878498886886
2003	14.503554295939164
2004	15.659566966207784
2005	17.230746146347624
2006	18.699192241375375
2007	21.830548129754753
2008	23.238872344646737
2009	22.146545307188727
2010	23.831162303819827
2011	24.328431416669854
2012	25.303721636011296
2013	25.503795428489184
2014	26.113802955470454
2015	23.17502005950393
2016	21.86388754288649
2017	23.007780799935144
2018	23.941824041763713
2019	22.353571991751124
2020	20.439978315194224