Year	% of total merchandise exports
1960	2.418558856798694
1961	2.682351959965253
1962	2.3074587488698697
1963	1.949642658352762
1964	2.506215058325249
1965	2.411258007527492
1966	2.0710276868276494
1967	1.5123007341690098
1968	1.5181812201028984
1969	1.4183506331846254
1970	1.49483658518126
1971	1.7825912800495143
1972	1.4034474159652957
1973	1.5218617523124167
1974	1.6361971381463891
1975	1.7129942494357457
1976	1.4607199575220104
1977	1.9085396284163347
1978	1.8767240558794223
1979	1.8198509030015921
1980	2.035431945759635
1981	2.255658284569965
1982	2.3963888184541857
1983	2.357046109005886
1984	1.7778336204041303
1985	1.9382697631324546
1986	1.5389418315846548
1987	1.7557479389405075
1988	2.355615905578351
1989	2.1863113048275253
1990	2.1802321187566034
1991	2.4394872601132023
1992	2.7627597748257164
1993	3.2899711671618066
1994	3.3703326290085633
1995	3.9519731244021528
1996	4.052005100496753
1997	4.246364577616724
1998	3.6151207575457422
1999	3.9895254666674784
2000	7.126406930724666
2001	7.369241780797389
2002	7.568270810769606
2003	8.930031917747758
2004	8.945979978155554
2005	9.649251229127842
2006	9.869735682716545
2007	10.0337558664419
2008	10.484717141782548
2009	10.72256841681429
2010	11.516490218995209
2011	12.937597149950205
2012	13.058083229710482
2013	13.217927068182908
2014	12.628166748320613
2015	11.97233323522504
2016	11.78432639527226
2017	12.676299033432729
2018	13.505084173819274
2019	14.35572619774859
2020	14.22096336474353