Year	% of total merchandise exports
1960	1.8039841206544578
1961	1.5600243753808651
1962	1.5778506047520506
1963	1.1726733719457232
1964	1.0012214856222568
1965	0.9800109838219594
1966	0.902367923169102
1967	0.8537196201663032
1968	0.6342787718021184
1969	0.6864775544642349
1970	0.6635897331899255
1971	0.7101027790613234
1972	0.7217535985208258
1973	0.983881916044387
1974	0.917441091802849
1975	1.123389071281486
1976	0.876531270693547
1977	1.1128715411752
1978	0.6207911102610144
1979	0.568728502093528
1980	1.030378796100223
1981	0.9008432039433454
1982	0.8123059555871807
1983	0.7406261013855916
1984	0.7609223854314711
1985	0.6371659953827967
1986	0.7042679043604304
1987	0.5168376973764491
1988	0.5518745156412803
1989	0.6470658036538437
1990	1.0531477916293792
1991	0.7605013696568014
1992	0.7299291796392523
1993	0.9957261424041247
1994	1.002413177325432
1995	0.9075187771577984
1996	1.2116085020002723
1997	1.1693930712051956
1998	1.1031057401103501
1999	0.9747612672289546
2000	0.6239065670719326
2001	0.8088349361992845
2002	0.6762996768333189
2003	0.6919700771458815
2004	0.5817284216448648
2005	0.6560360170774944
2006	0.7670093365218122
2007	0.7458070984297607
2008	0.6504369842967304
2009	0.7756691019325892
2010	0.5790852303420005
2011	0.45642125356461244
2012	0.5048434060721169
2013	0.45060327349344886
2014	0.49104357116275826
2015	0.7742112124273023
2016	0.8170542343090836
2017	0.855826349426869
2018	0.7397854014670548
2019	0.8074296121390915
2020	0.8992587968021911