Year	% of total merchandise exports
1960	3.6215416453113365
1961	3.583369608505987
1962	3.161588280925836
1963	3.2584015483481767
1964	3.1129866289431827
1965	3.1053863470340057
1966	3.0447512073659584
1967	2.591265803376033
1968	2.7789001707485563
1969	3.0860849258597356
1970	2.5988595416453415
1971	2.6447449836471315
1972	3.2215692772788627
1973	3.284977433913604
1974	3.878163464272657
1975	5.65205676306808
1976	5.120622328543034
1977	4.8357758975662675
1978	5.082210053873195
1979	3.3795561176567332
1980	3.908923233479616
1981	4.921330295414764
1982	4.676288302523539
1983	4.096416835731896
1984	3.5381516393311654
1985	2.9280916633741603
1986	2.720011956917731
1987	2.0150595982074813
1988	2.0127684266551693
1989	1.7395894882636709
1990	1.6756782261254932
1991	1.5505284514409765
1992	1.5400006243328315
1993	1.5536355421281414
1994	1.223879759195044
1995	1.2066081940216338
1996	1.2280534369562188
1997	1.3106271120698265
1998	1.3374175869919196
1999	1.2128036937048925
2000	1.0895336827604625
2001	1.1811610434903788
2002	1.1944882214437285
2003	1.3624911754400328
2004	1.3668934803757902
2005	1.120679990358282
2006	0.9630901931035403
2007	1.119457071245179
2008	1.3034061549652265
2009	1.4882303370849699
2010	1.395927651280916
2011	1.0430315802692782
2012	1.1030221215042986
2013	1.0173387033093206
2014	1.1989023412445146
2015	1.0188489816922186
2016	1.261353453327138
2017	1.1607142875932006
2018	0.9934605665902856
2019	1.010938312021331
2020	0.9168113361777894