Year	% of total merchandise exports
1960	15.396365975237176
1961	15.64671132004826
1962	15.430198906702191
1963	15.778251599147122
1964	12.35073292813729
1965	12.294057493466653
1966	11.160768699467761
1967	10.07459386853219
1968	9.838076868225178
1969	11.993732206007241
1970	11.542848546608376
1971	10.863715775915937
1972	9.403919717859935
1973	8.297717925973712
1974	8.36981527557962
1975	8.673550787362819
1976	8.420283644057312
1977	8.806970254429766
1978	7.260253737994911
1979	6.480835872057051
1980	6.015480264456224
1981	5.464812919761922
1982	7.735147638423352
1983	8.572401910198097
1984	10.265418863937283
1985	10.41192560825666
1986	11.314449203842535
1987	10.143985750850465
1988	12.664150336737848
1989	11.67056702721831
1990	9.962335862833621
1991	7.490480466540794
1992	7.037771039208838
1993	7.469963246196825
1994	7.143301914423741
1995	13.267868408716929
1996	8.972500378002364
1997	6.533070186677667
1998	7.309912618394194
1999	6.837436064688543
2000	5.545154491376291
2001	5.071657217321571
2002	4.916839373777672
2003	5.051394019227079
2004	5.283553978750641
2005	6.170376895477596
2006	5.396153192593838
2007	5.774580186488162
2008	5.4120211225445125
2009	5.368946365725698
2010	4.703638736085834
2011	4.752012710579674
2012	5.165637915135828
2013	5.488828956498395
2014	5.360540955131791
2015	4.859566472046767
2016	4.849338747956037
2017	5.250726444051427
2018	7.86719222288092
2019	8.286727636605889
2020	10.274864779522963