Year	% of total merchandise exports
1962	0.034950370473927024
1963	0.030886733406720213
1964	0.11589689180340305
1965	0.16599505737141293
1966	0.08372714469284477
1967	0.13831166078842108
1968	0.06156178264220218
1969	0.034060266102365566
1970	0.02516248337947915
1971	0.13333648206043014
1972	0.03297867136078109
1973	0.02364100024064465
1974	0.036387755839350895
1975	0.14395971922748707
1976	0.023225251320733203
1977	0.007880326143651363
1978	0.006345068099731125
1979	0.00016568362197504687
1980	0.004904006811005472
1981	0.018495082751124874
1982	0.05957724527966104
1983	0.046689932083689
1984	0.029254793350184244
1985	0.019159228809401217
1986	0.08503486535131162
1987	0.12288918429374268
1988	0.1345935133011902
1989	0.1494344540170359
1990	0.024639550200275077
1991	0.023265447221630597
1992	0.1689897094543671
1993	0.32443540672980564
1994	0.6640597952148481
1995	0.8675315022872592
1996	0.6308689632558809
1997	0.544410692955224
1998	0.701600063937729
1999	0.9922973745483167
2000	0.47770591249141375
2001	0.4231756470072052
2002	0.6948676276708994
2003	0.42536414021860003
2004	0.4929458124132707
2005	0.40245713889994605
2006	0.2646243090085244
2007	0.35760149887573484
2008	0.3425182348371949
2009	0.26939179053501927
2010	0.2734898713751303
2011	0.3015955291629023
2012	0.32183486338079353
2013	0.2727238996862535
2014	0.4267559853735728
2015	0.5663001794626855
2016	0.805423483383509
2017	0.714331892277052
2018	0.6831403605990686
2019	0.6585810272265603
2020	0.9937725389035722