Year	% of total merchandise exports
1960	11.191216350287718
1961	9.949409780775717
1962	8.285862247540136
1963	5.734144222415291
1964	5.736074270557029
1965	6.356085229324666
1966	5.215711526078557
1967	3.331367924528302
1968	2.366863905325444
1969	1.9042851857494179
1970	1.230367612444901
1971	1.1846767050487157
1972	1.8382896878236423
1973	3.658607428750683
1974	3.335559237916223
1975	3.1501850068427184
1976	2.1177562900477063
1977	1.5918483882593575
1978	2.2699844587026923
1979	3.4891010513622187
1980	3.467853698724622
1981	2.419137786362269
1982	2.176260816285149
1983	1.341433639249142
1984	0.7859442952789495
1985	0.7755117924038769
1986	1.0161535061699596
1987	0.378830119363961
1988	0.41441410923964833
1989	1.1565115901270226
1990	2.0495576377433466
1991	2.1970487608523364
1992	1.942032464247991
1993	2.3522832186618645
1994	2.0088796601961163
1995	1.8376060286651799
1996	1.2524731586850228
1997	1.5844654679501764
1998	1.8603933568312474
1999	1.706847315567457
2000	2.1365445435641996
2001	1.6222274256710987
2002	1.5774469841912437
2003	1.7890578153046295
2004	1.6438279805824467
2005	1.3235792647039633
2006	1.6714485834726893
2007	2.439959412330607
2008	1.8827575971536965
2009	1.6201509088330754
2010	1.5738674495149079
2011	0.8027235304385659
2012	1.795050883262846
2013	1.4352185108116082
2014	1.382821191804654
2015	1.1563136341492828
2016	1.5924680334378538
2017	1.3372524658734262
2018	1.1871480874496647
2019	1.3550124771724972
2020	1.3534658650153149