Year	% of total merchandise exports
1960	0.031293217644915466
1961	0.04592955974794623
1962	0.07127509500147759
1963	0.04953187425640274
1964	0.10278947973860636
1965	0.13768130517344587
1966	0.21783572275033797
1967	0.2681986243971259
1968	0.3612780863511253
1969	0.22832903283924477
1970	0.1365925962945577
1971	0.19504476729668715
1972	0.25582771599760096
1973	0.26954558925169925
1974	0.26708021996823994
1975	0.3198336397996461
1976	0.32992754219763176
1977	0.29205296182214446
1978	0.2623574369516422
1979	0.1304114291580561
1980	0.10234422528979394
1981	0.07237992698486677
1982	0.1410078052330458
1983	0.2426063324338942
1984	0.3707672409236998
1985	0.41258213755791745
1986	0.4213097994207464
1987	0.5248062987222423
1988	0.48576546068443743
1989	0.4918410579551281
1990	0.41256408846389087
1991	0.26139706662249873
1992	0.3916067927188912
1993	0.9494322907630381
1994	0.5677492289903653
1995	0.8440892168780377
1996	0.9905010247271806
1997	1.0386200403409742
1998	1.0127357588551336
1999	0.8188005909984497
2000	0.5654003111262699
2001	0.8381629460769958
2002	0.8914635245116338
2003	1.045107713508518
2004	1.0837264881852626
2005	1.3865471130666136
2006	1.4348279417098986
2007	1.361468503246377
2008	1.528091875701684
2009	1.3180292656302248
2010	1.4124047925545191
2011	1.4233057003153544
2012	1.3231877270875494
2013	1.3607732142532147
2014	1.4877406313594108
2015	1.2555097138961635
2016	1.2806374020839886
2017	1.3604710293956022
2018	1.2910451552441002
2019	1.2247548003078503
2020	1.4609631590915924