Year	% of total merchandise exports
1960	0.635439360929557
1961	0.908436769203094
1962	0.7412398921832885
1963	0.6468882444791434
1964	0.6929781820150506
1965	1.47453714608753
1966	1.2732525077456895
1967	0.9173246632605667
1968	1.167747132846412
1969	1.5697737740973272
1970	1.712545141359794
1971	1.171931522736364
1972	0.6148372267088204
1973	0.17448023869071183
1974	0.05446419696735739
1975	0.1639065248094502
1976	0.6991655264556709
1977	0.5022242475967417
1978	0.545107670156975
1979	0.9655425753537219
1980	2.653063466006621
1981	2.6906110371852483
1982	1.2225158901797408
1983	0.6262758154166694
1984	0.6190813213452825
1985	2.961156208750753
1986	1.1069595919076185
1987	1.0723911782975282
1988	1.0617242268509401
1989	0.7395102500500922
1990	0.2593602790962164
1991	0.8631696901430541
1992	0.4221106473906173
1993	1.0448989669304272
1994	1.8752009412351116
1995	1.804363399670664
1996	1.5759809901772195
1997	2.224295595189489
1998	2.7588273409128705
1999	2.794925453149803
2000	2.3160921680416426
2001	3.3275961226623867
2002	4.371655845238169
2003	4.026057233543353
2004	6.691643679550434
2005	4.294175332422473
2006	5.321725555917359
2007	3.697264852734609
2008	5.817632777852146
2009	6.358302272461934
2010	5.691328333904648
2011	5.795849654836937
2012	5.771231661758908
2013	7.167403077736504
2014	7.011105209253146
2015	5.040407226998123
2016	2.3736173474126154
2017	1.7705935917417839
2018	2.178294820022332
2019	1.6945958343720084
2020	1.7091007071630784