Year	% of total merchandise exports
1960	0.5483081743368565
1961	0.6612886793676079
1962	0.5583518247911818
1963	0.640955820130202
1964	0.4499644344274742
1965	0.4688641412108473
1966	0.6094974894996784
1967	0.7032240977962393
1968	0.6080473403631339
1969	0.5509846352367521
1970	0.5857385837843986
1971	0.5250596658711217
1972	0.7036447260999249
1973	0.7520954223081883
1974	0.7347564691067149
1975	0.8323603377043292
1976	0.9287435577210602
1977	0.7352756881013166
1978	0.3886829440853717
1979	0.40327671013299327
1980	0.38814839043802984
1981	0.38713904344679895
1982	0.4845541905479959
1983	0.4832409886141526
1984	0.5580724503524304
1985	0.7462465428684314
1986	0.7189096785644226
1987	0.7597628265707406
1988	0.6828856603909169
1989	0.5538167018920581
1990	0.6338715550699886
1991	0.7420072230729302
1992	0.6945889697113411
1993	1.5875804133288367
1994	1.3625549493974602
1995	1.5610950307953275
1996	1.8217010323387732
1997	2.0822670893210518
1998	1.9156733982150114
1999	1.3623589454290435
2000	1.6023654070656206
2001	1.414748944004166
2002	1.580304239292628
2003	2.0637060453540728
2004	2.282645970963768
2005	2.2947251928343575
2006	2.435066705466565
2007	2.975447414294278
2008	3.1634820356128643
2009	2.679393048272682
2010	3.032668642279494
2011	3.2709470946191823
2012	3.5367941064156403
2013	3.250761817626252
2014	3.143948694992052
2015	2.808436896902865
2016	3.1753635802499325
2017	3.695879522613065
2018	3.6306844831944427
2019	3.432684591943787
2020	3.216004898719995