Year	% of total merchandise exports
1960	3.075305753797862
1961	3.0988097753362913
1962	3.050307937166978
1963	2.5370272247874244
1964	2.278432129754779
1965	1.950971933208141
1966	2.1299055555036572
1967	2.1842789280272474
1968	2.486424921998444
1969	2.2137521369226985
1970	2.2235067653644767
1971	2.0871903806053047
1972	1.8914023337124564
1973	1.7590501958031524
1974	2.061975132112021
1975	2.015989937202809
1976	1.8287187459607237
1977	1.7295416239590504
1978	1.7147588417053434
1979	2.1697203471552555
1980	2.0958334788530717
1981	2.2180866254164684
1982	1.7517696630687454
1983	2.0713344344507107
1984	1.6323036580514414
1985	1.4593590023145693
1986	1.5501826376290462
1987	1.4374673521568195
1988	1.2711951433145066
1989	1.244972154307799
1990	1.0884059930385315
1991	1.393464969813859
1992	1.5034203646063389
1993	1.5356991969014469
1994	1.7968706983735043
1995	1.5895198395565135
1996	1.6296582726255233
1997	1.8580301039771425
1998	2.085260591406338
1999	1.8408339483166953
2000	2.011364598375935
2001	2.0148784918430347
2002	1.8023581866237024
2003	1.4436319125719284
2004	1.3818667331223862
2005	1.603078821956624
2006	1.5741675629716443
2007	1.7475282962518397
2008	1.9224712677060136
2009	1.7345589407235513
2010	1.994159215265391
2011	2.177962707572388
2012	2.3717151408562063
2013	2.5172483655345284
2014	2.3094792221083194
2015	2.5119521099663413
2016	2.4713491920052517
2017	2.222382451270134
2018	2.2028875121517224
2019	2.068839389964095
2020	1.7951152076695633