Year	% of total merchandise exports
1960	0.2112292191031794
1961	0.10525524108904345
1962	0.02010323192349368
1963	0.11062118583929945
1964	0.11488235970785415
1965	0.05242371506655588
1966	0.18742265585942683
1967	0.21028658977227918
1968	0.0970077592365317
1969	0.08620312899966018
1970	0.10540684563420315
1971	0.05916119480330103
1972	0.49669535277134075
1973	0.9110900078977178
1974	0.5119872362824365
1975	0.22811295159518458
1976	0.21153095151036644
1977	0.5717785575728066
1978	0.5323443112316383
1979	0.5492158842713434
1980	0.6513549690115027
1981	0.6883685166145926
1982	0.39681225264621334
1983	0.6248840554369727
1984	0.9120448646396585
1985	0.7727478900526616
1986	0.6038603602574724
1987	0.5923925601395968
1988	0.5872678545107588
1989	0.5453684580287826
1990	0.4514033368518468
1991	0.45703879044393625
1992	0.3821209324493606
1993	0.3200818996988376
1994	0.6947066640346906
1995	0.4380512858823216
1996	0.3801583737322695
1997	0.3561014946619953
1998	0.4554745150035627
1999	0.6103324575296238
2000	0.3943820113822239
2001	0.43444925394954764
2002	0.5878642899648346
2003	0.6285230188895564
2004	0.615224136108393
2005	0.7373731420879701
2006	0.6758994427566001
2007	0.6978039303182357
2008	0.7103042777047383
2009	1.269355528426471
2010	1.132362016990876
2011	1.0137755772507724
2012	1.5355830426367554
2013	1.5375352123461548
2014	1.7170997721153856
2015	1.5642343615757461
2016	1.5583023001718976
2017	2.0244670451632047
2018	1.9274677281163932
2019	1.6996347722161156
2020	1.6980838998543153