Year	% of total merchandise exports
1960	0.14729231932258272
1961	0.13323087422550994
1962	0.31801046595158483
1963	0.29349881063237115
1964	0.3272300854617413
1965	0.273312175379744
1966	0.35578585358542303
1967	0.44319640050577097
1968	0.4794466028818426
1969	0.4660244717347529
1970	0.4673392622379356
1971	0.5026739141018944
1972	0.44554636897633565
1973	0.33017352275923606
1974	0.30521400690077477
1975	0.5040173317931235
1976	0.5371153006610733
1977	0.4505465580783432
1978	0.4194585741310979
1979	0.3306414035857051
1980	0.49893962120381075
1981	1.2477121375664666
1982	1.259299654989338
1983	1.3395760514658412
1984	1.4449732929769321
1985	1.497429216905902
1986	0.9360814344067316
1987	1.2551182220719808
1988	1.1898598698851304
1989	1.0344538022729088
1990	0.9785296059319316
1991	0.5461692910429767
1992	2.504535087887895
1993	3.0339340140098456
1994	5.3686308005477485
1995	5.8901900386792425
1996	5.700473589925817
1997	5.579820262851309
1998	4.895768955850282
1999	3.7821445200074826
2000	4.024047069265564
2001	3.799773903605439
2002	4.192650316379643
2003	4.734609091890837
2004	4.661955376557409
2005	5.175385470114438
2006	5.47025022669666
2007	6.622088321923407
2008	7.035365265453036
2009	4.907910699561936
2010	5.058489504658124
2011	5.591390283416683
2012	6.239726951378599
2013	6.137441580311317
2014	5.788998717109874
2015	4.821597532469344
2016	4.790947848561194
2017	5.168087745825906
2018	5.0727795976126435
2019	5.295449375392786
2020	5.295327191357092