Year	% of total merchandise exports
1960	0.29654341580947086
1961	0.9852727649865173
1962	2.3175542406311638
1963	0.4763998827323365
1964	6.911232526786348
1965	5.8243967828418235
1966	5.468014313516228
1967	0.723845943731221
1968	0.3405720145017761
1969	0.3240826969640529
1970	0.29900932006408953
1971	0.5057936361964319
1972	0.19633912559520128
1973	2.0208573037283655
1974	2.961888770162316
1975	0.959158102352977
1976	0.17289241086591772
1977	2.0918599363346977
1978	1.3775154732260855
1979	2.746565352735617
1980	2.6440237810113283
1981	1.2062153352598057
1982	2.1947834209235144
1983	7.7118827928583285
1984	1.958211017095493
1985	4.475437854705487
1986	4.546774685524724
1987	5.006548670061807
1988	5.275623731058222
1989	5.525546398907526
1990	4.629853764690929
1991	3.6380413918123438
1992	2.450364963981192
1993	2.6352030806156197
1994	3.0879046340807434
1995	3.5852902094594983
1996	5.588268210940666
1997	5.919425925328007
1998	4.221602744691177
1999	4.375181127002283
2000	5.10081528338585
2001	7.271845498244758
2002	7.486778718349128
2003	12.129754177806076
2004	11.268295272287281
2005	11.910704986704662
2006	10.969200317698059
2007	13.009180780221644
2008	12.160881438249321
2009	11.357056764851176
2010	13.334465227869543
2011	12.34604400065535
2012	11.84823778256479
2013	13.979085023283593
2014	14.024134881776407
2015	16.943156008702342
2016	17.57658491126696
2017	15.952319142391733
2018	15.287274239866186
2019	20.249300359861262
2020	20.15651276192286