Year	% of total merchandise exports
1960	0.5544683626875407
1961	2.3928149993444343
1962	2.618121985449501
1963	1.8131494035108493
1964	1.9797301498476652
1965	1.552714295842885
1966	2.151110218024716
1967	1.2173564412370381
1968	1.576990175374162
1969	1.2181810548706251
1970	1.249059622893854
1971	1.5878199998911335
1972	1.6484762579730687
1973	1.4862646300037072
1974	1.9120497671871513
1975	1.5926305255651392
1976	1.0241581114898817
1977	1.3582795126173515
1978	1.4534199452412317
1979	1.3806411773786857
1980	1.7430178155141278
1981	1.5596597705954014
1982	2.085763495559383
1983	2.297691363526202
1984	1.6320893778524463
1985	1.5508649329820139
1986	1.2828087134681538
1987	1.6940549069492945
1988	2.459716394671139
1989	1.6004737178136053
1990	1.9097108699216474
1991	2.1157989865058937
1992	2.114484259361418
1993	1.588452087064764
1994	1.5735743691807567
1995	1.9808736890826975
1996	1.8413805059844308
1997	1.463793103289177
1998	1.0489859293964943
1999	1.136109925581209
2000	1.3562399127685094
2001	1.4192827093682783
2002	1.4812135864781495
2003	1.6727594861580037
2004	2.1287255333698463
2005	2.1583879165719546
2006	2.343963524124699
2007	2.781278841423086
2008	2.9948523794290423
2009	3.970821712353657
2010	4.215427003592221
2011	4.722162715303374
2012	5.186957170131336
2013	5.306948489213658
2014	4.576022627168932
2015	4.835927649326098
2016	4.8999902014887065
2017	5.252423204047862
2018	5.763911106817283
2019	4.849689941223677
2020	5.784039714310613