Year	% of total merchandise exports
1960	0.8781720577577016
1961	0.6881365262868153
1962	0.5177255662434889
1963	1.3509330519961644
1964	0.9088706563679019
1965	1.601282405844882
1966	0.9117801819534634
1967	0.9047289084881973
1968	0.957502544804132
1969	0.985124077889688
1970	1.5327025957780742
1971	2.5722744183877846
1972	2.147765022549449
1973	2.4179366294683438
1974	1.667262694255954
1975	1.728123369546999
1976	1.5865304651735805
1977	1.8135249566630347
1978	1.8704061669862433
1979	2.189360038631674
1980	1.2815286296393291
1981	1.7182430506897464
1982	1.7248262916497399
1983	1.7381262699076578
1984	1.6789828838068188
1985	2.1201148857312777
1986	1.6956789921492716
1987	1.9337095169329688
1988	2.1317369394432784
1989	2.329934660052909
1990	2.4095763812633395
1991	2.9209586682477924
1992	2.4291160984488003
1993	3.0582171107609697
1994	3.553572932383501
1995	3.8090268355240218
1996	4.440197979781541
1997	4.283021946483114
1998	2.7808635160183446
1999	2.823103906680275
2000	8.911883819913848
2001	8.703394604756955
2002	9.566432731665376
2003	10.64573936959898
2004	14.796665039727458
2005	16.516338536618406
2006	10.550893446074298
2007	9.308901517592952
2008	9.88753740170036
2009	8.426867096463017
2010	9.796419540177356
2011	10.751525991514471
2012	10.726813505208217
2013	12.635332690757409
2014	10.797717131777391
2015	10.297403108207378
2016	11.55285418027977
2017	14.242601906190586
2018	19.289762525331174
2019	16.620557362552507
2020	17.389717647556214