Year	% of total merchandise exports
1960	2.359460184109393
1961	2.1
1962	1.9979386347419328
1963	1.7318309007033201
1964	1.6679407881020223
1965	2.1057909250438707
1966	1.9137049803874957
1967	1.7736766493535197
1968	1.9900497512437811
1969	2.044031676271819
1970	1.8709632125807358
1971	1.8745060850324007
1972	1.8480280817674994
1973	2.0670708601743084
1974	2.775059415629806
1975	3.9542683738387416
1976	4.875035300762496
1977	4.846821664303276
1978	4.427681206953099
1979	4.621262071907846
1980	4.568646966628914
1981	6.500003158100844
1982	7.193480708218197
1983	6.322901065271375
1984	6.120179691322333
1985	5.753003307991412
1986	3.6065340340228986
1987	2.572559123953253
1988	2.7910234934925575
1989	2.176076498603842
1990	1.8927501831827773
1991	1.898986280551394
1992	1.8624806198185462
1993	1.773921751177288
1994	1.7571922816510936
1995	1.4528936842860196
1996	1.324926861175269
1997	1.2332342586967127
1998	1.363934230175643
1999	1.232396064815514
2000	1.0926052871054166
2001	1.445526844084109
2002	1.2512706106217397
2003	1.1584713849345518
2004	1.2253678245142534
2005	1.4135608981537773
2006	1.695778772668157
2007	1.7741953133012627
2008	1.8897770020579074
2009	2.18269212543859
2010	1.8839952611485022
2011	1.8519047635146557
2012	2.027610153691106
2013	2.2326169149343125
2014	2.122879806758948
2015	2.190675328688911
2016	1.888845384969426
2017	1.5561024496208922
2018	1.4401268625382138
2019	1.432530331896793
2020	1.3958814109563975