Year	% of total merchandise exports
1960	2.843094878542083
1961	3.0976841209277564
1962	2.7419308227711787
1963	2.794123680538842
1964	2.5775323363330833
1965	2.7762821072976154
1966	3.3305000992747367
1967	3.548658832839652
1968	3.6088009932758243
1969	3.4055888179021316
1970	3.1052827978786346
1971	2.9711191633015783
1972	2.7982344638447216
1973	3.05854223824027
1974	3.4474303903129533
1975	3.298288334408462
1976	2.8324275922135955
1977	2.802570828186659
1978	3.1174863946081204
1979	3.3001163032827145
1980	3.7030594403408696
1981	3.8446911908758366
1982	4.024866928699118
1983	4.17387573067941
1984	4.192389267428966
1985	4.584503067485477
1986	3.86470231442411
1987	3.832446395085851
1988	4.30700839703829
1989	4.460120291194858
1990	4.435026265728551
1991	5.112349722409031
1992	5.779128324161539
1993	7.1835373012660515
1994	7.582559733681658
1995	7.997158993933538
1996	8.123409717855745
1997	7.764036716221718
1998	6.300473600861113
1999	6.467013099662566
2000	7.661118415262575
2001	7.704722238843514
2002	8.201573758265681
2003	9.057343044380858
2004	9.395063919746018
2005	9.707720066399421
2006	9.940412122495248
2007	10.123198735200285
2008	10.311119470619074
2009	11.51707327229673
2010	12.981301017613212
2011	13.11332195920788
2012	13.65121321551668
2013	13.886407510100726
2014	13.827159937468704
2015	14.309564918879126
2016	14.010381153248034
2017	14.863239264865886
2018	14.931820363661405
2019	14.716236228931894
2020	15.368213508402127