Year	% of total merchandise exports
1960	3.8525002589258848
1961	3.8758319980016753
1962	3.1577962034230396
1963	3.237413813237692
1964	3.100499329010947
1965	3.6820601260683787
1966	3.3513534779205356
1967	3.5091291374666573
1968	3.8117305174919833
1969	4.117176550917813
1970	4.2804851948116704
1971	4.556305131278559
1972	4.008467102732338
1973	3.5326075002931923
1974	3.121792368755089
1975	3.5148442797341146
1976	3.076028727182962
1977	3.1613277160022415
1978	3.514293280146204
1979	2.8896126988183473
1980	3.1138066870969277
1981	3.311944459101591
1982	3.9169296359927137
1983	4.321111220851311
1984	3.8115768622398822
1985	3.7986037028561714
1986	4.075087065168905
1987	3.589782269867155
1988	3.9688698395575526
1989	3.5021198344712188
1990	3.5814222807713536
1991	4.663440432874781
1992	4.8348823995669745
1993	4.996816780054275
1994	4.708628448618638
1995	4.48005213808396
1996	4.344664059218652
1997	4.388130409142933
1998	4.872241398607931
1999	4.62661535919366
2000	3.9734607989735986
2001	4.881664589746227
2002	5.0904055993547015
2003	5.011769363547345
2004	5.583087774535559
2005	5.452145373301817
2006	5.592077984110013
2007	6.0603858575395355
2008	7.30526122481963
2009	7.923899869154863
2010	7.798709700086694
2011	7.303959005055255
2012	8.547105756427726
2013	8.367157606401651
2014	8.590945326696147
2015	8.677292252405113
2016	8.480208185246187
2017	7.415338609005678
2018	7.122381894834573
2019	7.466004089123768
2020	6.711527542050985