Year	% of total merchandise exports
1960	7.423251988226194
1961	7.309084687477705
1962	8.096564385273295
1963	7.7899858940444435
1964	10.01044001044001
1965	11.110654147081053
1966	7.890416565011058
1967	6.769508997678179
1968	8.174984180228527
1969	8.750332081529878
1970	8.759506256165913
1971	8.188390246771228
1972	9.803202533052161
1973	9.505163874247451
1974	8.226221700540904
1975	6.8168882487169125
1976	5.692432213835811
1977	5.751561676887828
1978	6.2876279439703655
1979	5.451580942679382
1980	8.750705346822746
1981	7.269752082995168
1982	7.639618464541025
1983	7.703433206801763
1984	7.5831564421946664
1985	6.8260597417946585
1986	7.817499415382214
1987	8.576932028532108
1988	8.941346605271667
1989	8.747833346732355
1990	9.221778214397398
1991	10.047244225664889
1992	10.660588401696984
1993	11.595450521916135
1994	13.379774052202672
1995	14.126160785351194
1996	11.947981253235806
1997	12.76606516896724
1998	14.380610510479523
1999	12.931081972280156
2000	13.465542640188444
2001	13.92643624535354
2002	14.880707456592388
2003	15.332920445961888
2004	16.655163640515518
2005	16.61303154977063
2006	17.412464809310517
2007	19.404406452523958
2008	21.378632497057005
2009	23.150930061862404
2010	20.706325029221993
2011	19.95426688882373
2012	20.203437848002785
2013	21.552395108106758
2014	21.91144921587809
2015	22.757735905321823
2016	23.53237874106586
2017	22.25030999372218
2018	21.887820681446314
2019	21.822414250044726
2020	22.05724340005832