Year	% of total merchandise exports
1960	2.4713912573113572
1961	2.185317722266616
1962	2.1239683646938388
1963	1.2278702860065593
1964	1.0522535890172244
1965	1.1018966698906145
1966	1.1284398959171256
1967	1.1930914577860263
1968	0.6296693844381246
1969	0.8558082412250266
1970	1.0174788592573214
1971	1.458727269125193
1972	1.3268921817435044
1973	1.5395442025244728
1974	1.724049842796375
1975	3.3248996213878677
1976	2.0858725363805433
1977	2.1375324572813357
1978	2.3800333589581313
1979	2.0848050558389706
1980	2.813189400966304
1981	3.5511973696609114
1982	2.501023347785541
1983	2.4691634685570896
1984	2.9466155988040708
1985	2.599645056930156
1986	1.7524876485894312
1987	1.570697994094992
1988	1.5446746360943844
1989	1.6595698666364425
1990	2.5172236796399137
1991	1.9734276517215863
1992	1.8746840642827514
1993	2.4802631961555766
1994	2.3033219920767953
1995	2.094736037139889
1996	1.79300087081625
1997	1.6629834468643023
1998	1.8636700852809311
1999	1.514123347040017
2000	0.5976298580426386
2001	0.8132750594521584
2002	0.6914140679878863
2003	0.881747046062532
2004	0.6837553446855323
2005	0.764083038204594
2006	0.837986454051729
2007	0.7296960952974971
2008	0.7165724081076873
2009	0.7259253830937968
2010	0.6344138049203928
2011	0.5941965854998472
2012	0.7790880644789983
2013	0.6094630555788922
2014	0.5585864887545154
2015	0.6811308536472244
2016	0.6889529619462889
2017	0.7825210457243328
2018	0.6750912968338036
2019	1.0397276047329926
2020	1.1802510371962454