Year	% of total merchandise exports
1960	0.26143907170442615
1961	0.26026654137604344
1962	0.3707646081944142
1963	0.3903461391105979
1964	0.31093071645769677
1965	0.38723910098250947
1966	0.5528228753321885
1967	0.7698497378874539
1968	0.8546074099047573
1969	0.6474919711855825
1970	0.7642992370421962
1971	0.8985500574640694
1972	1.033423833839079
1973	0.9564648350358732
1974	0.9180713421700123
1975	1.1234823575191837
1976	0.9096662888080056
1977	0.8780581248045057
1978	0.7736308692824263
1979	0.7073504435637755
1980	0.784560628368526
1981	0.670947657013817
1982	0.6733417942006851
1983	0.8637707982432707
1984	0.7609507625482448
1985	0.7658045075858237
1986	0.9118235890106062
1987	0.8319594969345229
1988	0.7689969509413878
1989	0.6184702811932784
1990	0.5612369183067731
1991	0.463749577230793
1992	2.7314245905758083
1993	3.032090074843643
1994	5.309780121560355
1995	5.232591196586844
1996	5.461970115429529
1997	5.471747536636698
1998	4.742381908172463
1999	3.5386437364013417
2000	3.7471407237219228
2001	3.302787171555387
2002	3.985143648674777
2003	4.540228669094634
2004	4.3779570326031285
2005	5.209726584031521
2006	5.500234423450263
2007	6.765613144832734
2008	7.323982881989492
2009	5.087077988789365
2010	5.154745931716509
2011	5.643236452300279
2012	6.489493357656167
2013	6.31653301550653
2014	5.933286360082836
2015	4.967927510282439
2016	4.98186004143334
2017	5.425676328986557
2018	5.2350084653464695
2019	5.457558480287976
2020	5.27581888199591