Year	% of total merchandise exports
1960	2.853664475286097
1961	3.750178920750036
1962	3.543671354552184
1963	3.5703544575725026
1964	2.609122489049992
1965	2.619197217879217
1966	3.058767809922248
1967	3.2603116465049076
1968	3.2952789848573394
1969	2.855487066013382
1970	2.8806908104806244
1971	2.677685501080589
1972	2.941028858218319
1973	3.533593639531449
1974	3.7800070387037428
1975	2.7977157713914296
1976	2.518570001303158
1977	2.403006230016152
1978	2.810227098891624
1979	3.4265234943564113
1980	4.524948735475051
1981	4.073562609022813
1982	4.5089224772995795
1983	4.147851619946858
1984	4.152056440884778
1985	3.982187579142865
1986	3.762567494227921
1987	3.7166654142920987
1988	3.8057528932120372
1989	4.023379709857899
1990	4.008040881696172
1991	4.342248830611877
1992	4.854354169694665
1993	5.421801395801426
1994	5.512829773900005
1995	6.1882676610276475
1996	6.199944753333269
1997	6.322059702404062
1998	5.581627045121245
1999	5.270334239055694
2000	5.832607003588695
2001	6.2137461595073225
2002	6.908237228725361
2003	7.900999182085461
2004	7.730574884942183
2005	7.839441871574729
2006	8.48287833055285
2007	8.563658412818551
2008	8.539934775251515
2009	9.591573549308833
2010	10.447745187829259
2011	10.104287111259511
2012	10.127120968171822
2013	10.776057796671376
2014	10.61200332561957
2015	10.825092694856338
2016	11.25177134511935
2017	11.570554553541967
2018	10.447886686956208
2019	9.818631487947256
2020	12.20222295792062