Year	% of merchandise exports
1963	6.703908376496768
1964	7.065953468060899
1965	7.2118771944313815
1966	7.2244750686297445
1967	7.051514840544453
1968	6.9660065723368705
1969	6.688773660572956
1970	6.996169690956671
1971	5.7413005683577385
1972	5.4066227673243406
1973	5.512578820853946
1974	6.07858478730032
1975	5.313056252455608
1976	5.132256837805848
1977	4.917443967631433
1978	4.566286243146988
1979	4.785032810389272
1980	5.402199648523326
1981	4.382100617454103
1982	4.078468225114229
1983	5.318434573702954
1984	3.9049146645460673
1985	3.591951746290101
1986	3.3635091665657
1987	3.632991494286553
1991	5.454975311755217
1992	4.428369948318017
1993	3.9580166576117297
1994	2.899331805446285
1995	3.3318441752173418
1996	3.229177922098812
1997	3.2943642557936035
1998	3.2403445941352818
1999	3.115772702538486
2000	3.038199091210971
2001	2.978099687259125
2002	2.7905552624016083
2003	2.806455824795953
2004	3.2130415988106806
2005	3.4171125156931135
2006	4.1107085751783
2007	4.272526347628684
2008	3.994332998260129
2009	3.4921601088481213
2010	4.262610839661707
2011	4.43417560186574
2012	4.034787786058915
2013	3.86835164485135
2014	3.8682755869549075
2015	3.725548224079013
2016	3.5395711129724012
2017	3.7296441871779304
2018	3.7552926084167515
2019	3.7742037740085577
2020	4.297498735635406
2021	4.863050027689302
2022	4.224491724554442
2023	3.9862425108979673