Year	% of total merchandise exports
1960	0.8536307762349192
1961	0.8520276100086281
1962	0.783101494075219
1963	0.7656395891690008
1964	0.6219872492613902
1965	0.8545820885152504
1966	0.6731200717994743
1967	0.7374121442562508
1968	0.5370236496953423
1969	0.47575812602142725
1970	0.535390847926306
1971	0.6599460790059782
1972	0.7301231529349974
1973	0.5922564865424387
1974	0.641041988090836
1975	0.9348249968885263
1976	1.2248862325970291
1977	1.1510173052998678
1978	0.8618674500319347
1979	0.9037304283500435
1980	0.9341831393359639
1981	0.7064090607432748
1982	0.5223729107364427
1983	0.4375095609606854
1984	0.32394397432526195
1985	0.2312409983500615
1986	0.33404085418244506
1987	0.251682684443273
1988	0.44779915750392685
1989	0.30907407522811764
1990	0.28478017965430336
1991	0.3716346313099697
1992	0.31674546723230673
1993	0.3015878791566581
1994	0.2673133116675098
1995	0.2132867713253126
1996	0.2372286082252971
1997	0.2907321598667111
1998	0.24519074269613167
1999	0.5686503192406269
2000	0.18837862176144304
2001	0.17666590451317507
2002	0.15301442984400263
2003	0.141587666474273
2004	0.17712831263324325
2005	0.17164565309584395
2006	0.15521740045534207
2007	0.15228089413904103
2008	0.1411474627977923
2009	0.24561442651869358
2010	0.2011350618738951
2011	0.23734022207666633
2012	0.37827580514947895
2013	0.2050322031899139
2014	0.22077287375321408
2015	0.27075395038666655
2016	0.32919425729097634
2017	0.6520597360888082
2018	0.6108786451676335
2019	0.6325170441615529
2020	0.36175797582485264