Year	% of total merchandise exports
1960	4.005004634729053
1961	3.8236838436050453
1962	3.7263712672767824
1963	3.927839979871682
1964	4.227466014419043
1965	4.288440375373435
1966	3.7472501741464623
1967	3.802814370932234
1968	3.5261277258522945
1969	3.4919533557387923
1970	3.5828046686426855
1971	3.6732869651696443
1972	3.080101197503887
1973	3.0211146616436246
1974	3.183170669203602
1975	3.618517892365463
1976	3.317568028290939
1977	3.4838932525318516
1978	3.30206154670607
1979	2.737380638601089
1980	3.345201236128302
1981	3.5239154205033665
1982	3.1089658774536955
1983	2.466378574069982
1984	2.22959954373627
1985	2.0211463346087943
1986	1.7952756279757915
1987	1.689910088829141
1988	1.621044918264838
1989	1.5006353651069542
1990	1.4340273540020407
1991	1.4521814090471896
1992	1.4487274424294068
1993	1.3273350735044538
1994	1.1891807875071518
1995	1.2312235994862097
1996	1.182501952021513
1997	1.1173123403069962
1998	1.1901605655179905
1999	1.0244659904048838
2000	0.973593211062662
2001	1.0691414625467952
2002	1.0458909169147348
2003	1.0879128915983343
2004	1.129607856321069
2005	1.1770632884008414
2006	1.3177775656948523
2007	1.2778823645276474
2008	1.371490175613947
2009	1.4265154997394112
2010	1.3988504392107037
2011	1.5263748300600732
2012	1.456687897122896
2013	1.4972159211208869
2014	1.465670043210367
2015	1.3351212187819048
2016	1.1814619931899928
2017	1.1370465866149475
2018	1.1215732500767783
2019	1.13689248371071
2020	1.0886158661822127