Year	% of total merchandise exports
1960	2.7764666013095627
1961	3.0528639305623106
1962	3.149489800963231
1963	2.726798993279297
1964	2.4800125775316775
1965	2.590562783531723
1966	2.59954479721291
1967	2.869243343469902
1968	2.242789831870999
1969	2.2175064629304773
1970	2.278431989417709
1971	2.577691990384924
1972	1.6536962774827677
1973	1.569100903304101
1974	1.21390690239904
1975	1.829251846981563
1976	1.1948060586325067
1977	1.4155738776334101
1978	1.8958265837341874
1979	1.2261312519010323
1980	4.1623291408919405
1981	3.8623674223267153
1982	3.033961746477106
1983	2.130894835362081
1984	2.356509754478388
1985	2.1522132397967653
1986	3.0697897857523686
1987	3.284791292542107
1988	3.399435791067355
1989	3.5864593490392096
1990	3.06929353451239
1991	2.724960758849368
1992	3.9872240234181175
1993	3.8784054744326864
1994	3.5556094730496097
1995	3.587098812941278
1996	3.6004606555727294
1997	3.5388181247750228
1998	3.192340000158368
1999	2.6507227259441892
2000	3.7783419693222533
2001	4.301699574926151
2002	4.367466832930158
2003	3.140462302854747
2004	2.1510195535742684
2005	1.8230514819851755
2006	1.829017036515336
2007	2.1172197381822873
2008	2.4029127527271994
2009	2.8173235876469462
2010	2.9464174076365834
2011	2.5691818404765567
2012	3.5881172141444226
2013	2.811558328839963
2014	2.961593016379905
2015	3.814228044943769
2016	5.186292783909194
2017	4.534023297143539
2018	3.436301502151926
2019	5.303011069190154
2020	7.446703062708465