Year	% of total merchandise exports
1960	5.323168263392255
1961	4.815900944933203
1962	5.600531657805703
1963	5.65292910153166
1964	5.519004117953319
1965	5.75377969762419
1966	4.685331809648192
1967	5.391304347826087
1968	5.407767728205518
1969	4.907454407320043
1970	4.420946446052097
1971	4.491381535159805
1972	4.140979358636041
1973	4.128882978978749
1974	4.101459964716115
1975	4.196065872586797
1976	4.362157172445813
1977	4.555577529090366
1978	4.949883544031127
1979	4.451306581435205
1980	4.482061560959113
1981	4.008641860175946
1982	3.7388355884091484
1983	3.685272494556839
1984	3.8220579703593196
1985	3.9897796208780716
1986	4.174416631491477
1987	4.15060416377597
1988	4.223457817038968
1989	4.377807477474237
1990	4.203999159073416
1991	3.6561694481615135
1992	3.2353236421746554
1993	2.260892069851273
1994	2.3335602539013722
1995	2.2193840979620014
1996	2.1719473810129313
1997	2.3218687407474627
1998	2.374133487712814
1999	0.22943170041131644
2000	0.16789317289425423
2001	0.36470721494202324
2002	0.4945403878050966
2003	0.5583790673616372
2004	0.6994782395197321
2005	0.7327357549869756
2006	0.17659319330474482
2007	0.5601379020938405
2008	0.7488971678862031
2009	0.5281088006326247
2010	0.333376315151283
2011	0.6568012944289494
2012	0.9690369469398428
2013	0.8959681078693814
2014	0.4728905518732117
2015	0.6575534156129725
2016	0.6911890806820916
2017	0.7223958343901821
2018	0.7536102341606584
2019	0.744289013260636
2020	0.6153775744869497