Year	% of total merchandise exports
1960	81.95389681668496
1961	83.69121921543002
1962	84.35659411933977
1963	79.95021297418366
1964	76.1643949725231
1965	74.41224335723552
1966	77.39304814546212
1967	79.68240775453967
1968	76.70487104389898
1969	77.61381279815186
1970	75.93745412066411
1971	77.0857465821326
1972	74.71547145451527
1973	75.21416835835528
1974	76.80203631885674
1975	78.58761555330295
1976	82.65913947231533
1977	82.21635389282216
1978	82.05586809845977
1979	80.83428031425261
1980	79.94920624642742
1981	77.44060684979742
1982	79.6532375797065
1983	78.6534773818241
1984	80.85890465968076
1985	81.36990274352505
1986	80.38226833659087
1987	78.6352736207502
1988	77.72087652106357
1989	78.41749113257056
1990	79.24798418113261
1991	78.39100200630868
1992	76.12135746216285
1993	73.52255372268651
1994	70.6638988564008
1995	70.84373370061053
1996	69.1041816424627
1997	72.79268013317152
1998	60.79212818170028
1999	66.88439945798372
2000	62.68783624359665
2001	58.50199872050911
2002	57.63976263663905
2003	60.38950208543395
2004	60.00730117503713
2005	58.450442487272284
2006	63.786210437429006
2007	55.08511135433412
2008	52.865564588631806
2009	53.76638275492888
2010	48.51629689599966
2011	47.13305410177573
2012	41.10278801605292
2013	40.427715578393396
2014	42.00415340788202
2015	43.13173497222212
2016	42.77169781041972
2017	42.016900766752805
2018	40.70136559731199
2019	42.559601649643206
2020	44.4237985857894