Year	% of total merchandise exports
1960	14.044563882610476
1961	14.12935123464327
1962	15.614422708833079
1963	15.145905390612654
1964	15.391140970487388
1965	15.262277309239167
1966	14.583377600850714
1967	12.95048667536283
1968	12.67361982396359
1969	12.923171589800136
1970	22.7903270425998
1971	22.227802941063853
1972	23.282999396472302
1973	20.163020751365185
1974	16.265951962167836
1975	17.154424976783687
1976	15.148966660087638
1977	16.680546094422123
1978	16.84280347250834
1979	14.895587806544109
1980	12.859848534373445
1981	11.299749404077152
1982	13.45976367904814
1983	12.855271285342202
1984	12.98839604199378
1985	13.811293103448088
1986	12.672266967113528
1987	11.05010324507734
1988	10.578913277093891
1989	10.178483757701374
1990	8.084524357355221
1991	6.678342401163993
1992	5.8303451959495876
1993	4.004215441256666
1994	3.7804720681339568
1995	6.194587465324098
1996	4.008344035204389
1997	3.3398869758456353
1998	3.8046437563298334
1999	2.865376998404178
2000	3.8349180577704796
2001	3.1792889196345007
2002	2.581667912823949
2003	2.159278353234483
2004	2.39727946568639
2005	2.6440748877785962
2006	2.3263599026099815
2007	2.175389661152039
2008	2.55660625220573
2009	3.715299145887167
2010	3.1477579315559057
2011	3.906960309250989
2012	2.309334578096282
2013	2.1659077252688492
2014	1.8943425303112513
2015	1.333221340950272
2016	1.260734622955093
2017	1.19112351038735
2018	1.753774789670429
2019	1.6199302771050954
2020	1.5591269861164387