Year	% of total merchandise exports
1960	0.310708277543173
1961	0.2933656745771601
1962	0.2129341356003291
1963	0.32858707557502737
1964	0.2002114033451471
1965	0.2339706473187909
1966	0.225057771526173
1967	0.17768301350390903
1968	0.2655097481100603
1969	0.21200968387466937
1970	0.6394564321794061
1971	0.6444905313236551
1972	0.43231750531537916
1973	0.4021123190872845
1974	0.8909763652220777
1975	0.9789967630892396
1976	0.9261266231846933
1977	1.3394527850929052
1978	1.3078508215880043
1979	1.3809842364363025
1980	1.7437560070334885
1981	1.9483715903497167
1982	2.359064627927249
1983	1.587562185165206
1984	1.5047294820439159
1985	1.072684332507909
1986	0.8618940713013352
1987	0.8366307266088936
1988	0.9055564929511914
1989	0.9668070434672922
1990	0.8448840381347031
1991	0.9730941751624719
1992	0.5912104395801335
1993	0.7076724698614699
1994	0.548852624973118
1995	0.6950380661178914
1996	0.6226025419739432
1997	0.6938262882152595
1998	0.5568285540255731
1999	0.4488968753170163
2000	0.42788085377821394
2001	0.4034333576999916
2002	0.48035440617887987
2003	0.5054992886624129
2004	0.5616466740959069
2005	0.6053762500623714
2006	0.6882041790391327
2007	0.964686610154975
2008	1.1721521793812761
2009	1.5827597228761474
2010	1.135691547442091
2011	1.0469897571413382
2012	1.256171851807912
2013	1.0573176021232202
2014	1.0894266134157067
2015	1.1072784162813933
2016	1.0255043406057496
2017	0.9919465196077261
2018	1.0565867094361707
2019	1.2758381129258594
2020	1.207083785730397