Year	% of total merchandise exports
1960	6.1536635455834165
1961	6.724704740186657
1962	6.699973460780924
1963	6.065378380474195
1964	6.976892209116533
1965	7.493483662266345
1966	5.653738017918313
1967	4.651148943022899
1968	5.966974154589611
1969	6.7382605452770905
1970	6.249590271048669
1971	6.973777660956444
1972	6.75469600272862
1973	6.333006291536086
1974	5.102729496453669
1975	5.182815278118093
1976	4.593677747235672
1977	4.5792877394814715
1978	4.913555333362756
1979	4.015480790081375
1980	4.319727674444618
1981	4.486869426782683
1982	4.6703551681498565
1983	4.715400201106125
1984	4.874758984568557
1985	4.938153042049001
1986	5.253334232572037
1987	5.1376734008421545
1988	5.514560002772117
1989	5.651392103174308
1990	5.96756047531409
1991	6.26229655627861
1992	6.703999861012577
1993	7.815472802075743
1994	10.53417756376039
1995	12.388097994939235
1996	11.54870320257996
1997	11.223576624900183
1998	11.446223385330278
1999	10.280189708308784
2000	10.7404843103799
2001	11.347789607720632
2002	12.22434364097775
2003	12.67192953461379
2004	13.52022903432025
2005	13.828052450879301
2006	13.74834030063452
2007	14.38830584404744
2008	13.853162524063775
2009	14.770025470026503
2010	15.135362277452943
2011	15.275602968528535
2012	16.279044912411415
2013	16.64115650533401
2014	16.331834404076805
2015	16.731703806577734
2016	16.39727124312476
2017	17.59700843558331
2018	18.011565841235235
2019	18.796742010181745
2020	20.130373997634987