Year	% of total merchandise exports
1960	1.3763517740638127
1961	1.7333333333333332
1962	1.8076587647665108
1963	1.7545186417605687
1964	1.8416846201959831
1965	2.2499373276510406
1966	2.0860572922857483
1967	2.353851254282241
1968	1.8744660535705313
1969	1.5962519175753556
1970	1.3163437236731255
1971	1.4256361624782676
1972	1.0633904604583937
1973	1.2012125805229252
1974	1.7279463162309523
1975	1.5798440120318364
1976	1.5049891744328345
1977	1.1446293216898076
1978	1.2003935716628402
1979	1.4977569199343237
1980	1.2755831645902689
1981	1.254397655425933
1982	1.4117029986695322
1983	1.5891540720857404
1984	1.486837674179221
1985	1.520515350240845
1986	1.2405943105312573
1987	1.2573847427993006
1988	1.324337749878086
1989	1.033461856634833
1990	0.871132992604365
1991	0.8926077317608407
1992	2.514233050689364
1993	1.2376631178047108
1994	2.578437402062113
1995	2.800161071886743
1996	3.10604418027006
1997	3.4134904957631136
1998	2.997881583231142
1999	2.5335901699358994
2000	2.8259637763450076
2001	3.134448102731449
2002	3.2559131364306824
2003	3.805822331932587
2004	4.054804649138376
2005	4.888973015390523
2006	5.58793066064618
2007	6.148868928109204
2008	6.898795597508502
2009	6.104709620897678
2010	6.1306497054617495
2011	6.408506833113583
2012	6.836478742996317
2013	6.95634494852895
2014	6.4795519046363275
2015	5.168595895971924
2016	4.540678432507068
2017	4.51534165010177
2018	4.350924272380489
2019	4.571338504505513
2020	4.538987416256928