Year	% of total merchandise exports
1960	11.019938999408204
1961	10.73881004769851
1962	10.048489637584856
1963	9.24751494028873
1964	9.49039849778516
1965	8.880784350873869
1966	9.150254015624498
1967	8.442302364999694
1968	8.553170227863408
1969	8.127447190443565
1970	8.567321578057411
1971	8.250078907082598
1972	8.31060424489736
1973	8.449048796318788
1974	10.089581459562599
1975	9.911511117167237
1976	8.739006059200245
1977	8.347789607253148
1978	8.782279825095957
1979	9.426664425413632
1980	11.110555137154844
1981	11.127560732482634
1982	8.924659602910939
1983	7.412417099421854
1984	7.681366329936089
1985	8.234376377488031
1986	8.291283901175216
1987	8.219782676099722
1988	8.326657043562303
1989	8.725016263692774
1990	8.9899855318583
1991	9.898229785578465
1992	11.262925195742385
1993	11.31393587542652
1994	12.364940848649058
1995	11.049700477125992
1996	11.892416154250917
1997	13.342294354389173
1998	14.327039019115439
1999	13.996664190459892
2000	14.79252254008597
2001	14.887017214352143
2002	14.666469891733547
2003	14.06164854365701
2004	14.153085743934795
2005	13.931417571835688
2006	14.221736597666679
2007	13.895154231315166
2008	14.649108599260238
2009	15.486266527879605
2010	16.3267524730257
2011	17.04346287398242
2012	17.54961027796765
2013	17.94067797113662
2014	18.23514635586974
2015	18.53385867232807
2016	18.5062087778472
2017	18.640422174654518
2018	18.840102823340423
2019	18.67955484887679
2020	17.631757372557367