Year	% of total merchandise exports
1960	70.87432559205493
1961	73.58412905975278
1962	70.96392564601268
1963	68.71891319506514
1964	71.01605792177324
1965	70.00408810884304
1966	72.42645793453221
1967	72.88284091762172
1968	71.42898301694575
1969	73.13267111643192
1970	70.71898070385548
1971	73.1648926792164
1972	68.19035361537371
1973	68.66611345073386
1974	67.98963843199768
1975	66.72759268378641
1976	74.33851634049613
1977	74.4814184330214
1978	71.4141189024388
1979	69.21730905563503
1980	67.93186872058267
1981	68.450810919778
1982	71.11553900679978
1983	68.23222022412104
1984	68.71918703106232
1985	67.01089876316168
1986	66.25662457663601
1987	65.76541942626068
1988	66.5973879720841
1989	63.908135361052906
1990	65.75470186192274
1991	64.32508875321031
1992	66.07067000135984
1993	64.1744616689879
1994	64.08117189422975
1995	63.169148839732124
1996	57.01018335181212
1997	60.63702225378888
1998	69.02797681698732
1999	66.83958429848086
2000	63.610372124401735
2001	64.80714005655364
2002	64.77406941672363
2003	63.2451188871831
2004	57.982353681595335
2005	54.611410350403574
2006	57.60206756452699
2007	58.570919019212994
2008	53.394567145794134
2009	52.44162988385281
2010	54.155477430705204
2011	54.54313112273256
2012	51.31486314118322
2013	50.23491703046336
2014	50.322593420483116
2015	52.70002433655727
2016	52.58525215388358
2017	52.82981053058339
2018	50.86171671636478
2019	53.417425390439824
2020	54.40450060198514