Year	% of total merchandise exports
1960	77.30407523510972
1961	78.1556195965418
1962	84.24783407718562
1963	83.06605055721663
1964	82.13677293745437
1965	77.21268163804491
1966	78.6384019567876
1967	80.55502392344498
1968	75.55958862673926
1969	76.52667846168171
1970	75.48641438257235
1971	74.96416061954096
1972	73.95646520803444
1973	72.92331297663537
1974	70.13760150395572
1975	72.65251345601988
1976	77.00289772263488
1977	74.96961847653063
1978	72.43074583426197
1979	68.40346030565443
1980	67.3345276582309
1981	57.86634964861497
1982	56.810568899585846
1983	59.7921373693054
1984	59.393793877264
1985	56.851012352548935
1986	60.85508774244271
1987	64.40805709945302
1988	60.30926247653636
1989	63.63160814890979
1990	71.37265314266902
1991	72.76020778359592
1992	66.46943488152016
1993	70.45797875072016
1994	58.67782074880249
1995	57.00356079008174
1996	57.392803257476764
1997	58.34556728289723
1998	60.68890195228749
1999	64.59110120765217
2000	65.26796903059518
2001	65.51701065901587
2002	64.0217150554781
2003	63.490254548910784
2004	65.848706658674
2005	65.8136721251298
2006	66.3239672829106
2007	61.979183905570636
2008	63.35995164997734
2009	56.48003156110568
2010	58.61055767580879
2011	55.25133436647308
2012	58.523923448256035
2013	59.9355096462051
2014	60.969613244934386
2015	60.081712957037304
2016	58.79649516634047
2017	58.50177896917387
2018	59.40694370509786
2019	57.55138547434431
2020	55.513458544624804