Year	% of total merchandise exports
1960	0.12539184952978058
1961	0.3170028818443804
1964	0.02433682161109759
1967	0.03827751196172249
1968	0.02016535591853196
1969	0.06518297793090605
1970	0.5573586636986185
1971	0.41677135214223426
1972	0.2499551649928264
1973	0.16330933065961778
1974	0.12663516018695006
1975	0.3476435903659181
1976	0.1357032079013958
1977	0.21167221046265497
1978	0.28230440805660073
1979	0.13502983938089927
1980	0.10398863332166464
1981	0.6299447487128575
1982	0.664918434575954
1983	0.5496257334846344
1984	0.35226918134184004
1985	0.24120107072906594
1986	0.4531612965367739
1987	0.5714098028153969
1988	0.8031050609095478
1989	0.8087772978003301
1990	0.8514091463163463
1991	0.8643240756015939
1992	0.3526473792128291
1993	0.45990487936586716
1994	0.25300715620045566
1995	0.23165553251065096
1996	0.36278974148560283
1997	0.4278582722632324
1998	0.5870151768944135
1999	0.7057542941155395
2000	0.48104847690204944
2001	0.5144338725031761
2002	0.5804539477479076
2003	0.5425922896391053
2004	0.5010105995558193
2005	0.5126469390793723
2006	0.512532610895479
2007	0.5472527992662701
2008	0.660315299225724
2009	0.8681651126828375
2010	0.59552999642986
2011	0.7061622265877147
2012	0.7517490540985815
2013	0.8147565670272517
2014	0.8223327916388811
2015	1.07109572091867
2016	1.1637087228901217
2017	1.1067631150807848
2018	1.1716305208852336
2019	1.2233221119607571
2020	1.489672425529172