Year	% of total merchandise exports
1960	1.024608368622109
1961	0.7873793929149939
1962	0.7238253408068646
1963	0.7418060706986602
1964	0.8734368433606307
1965	0.7379586864944425
1966	0.7716236793184302
1967	0.8792686205969347
1968	0.7723958709304843
1969	0.5388038554409211
1970	0.3524387300981553
1971	0.4336133143647809
1972	0.4335022153801378
1973	0.5635040611535943
1974	0.4880000524731239
1975	0.970640645696153
1976	0.7064860376048884
1977	0.6216878880681411
1978	0.6825355109830807
1979	0.5497027518355301
1980	0.7003282925295987
1981	0.6435982865302237
1982	0.8402029668421025
1983	0.597234940223019
1984	0.659315711313237
1985	0.8290039349680022
1986	1.0457122867532804
1987	0.8685700932010006
1988	0.6877888187501888
1989	0.8341632372327857
1990	0.6762544001159907
1991	0.6330918714483486
1992	0.5366262948469168
1993	0.6814762567180331
1994	0.7019301509175735
1995	0.5859428679845222
1996	0.6003603693344985
1997	0.4477308120336993
1998	0.4089027257836843
1999	0.6603305471241937
2000	0.6454124177024954
2001	0.47644923565184577
2002	0.4799675413426986
2003	0.4730253883553314
2004	0.5971588960679751
2005	0.7087471936538653
2006	0.8336924355356348
2007	0.9737139602177733
2008	0.9337511128568535
2009	0.8636151457695304
2010	0.9461893725102264
2011	0.9036244174892418
2012	0.971043207206384
2013	0.8425433898684674
2014	0.8986236155640256
2015	1.1343332711786736
2016	1.1634235474750538
2017	1.4073828751461803
2018	1.442824012490081
2019	1.3132265811367019
2020	1.5208029426338938