Year	% of total merchandise exports
1960	5.0286681079048785
1961	5.5939890960736705
1962	5.180119781889694
1963	4.967330871312041
1964	4.706775479218068
1965	5.643094089264173
1966	5.472180853095048
1967	6.140790196288378
1968	6.214202017743073
1969	7.599905344842811
1970	9.0811541852807
1971	8.803337023070236
1972	6.8688317694737755
1973	5.751725443093041
1974	11.199485793716407
1975	13.973536927034399
1976	14.327867184452847
1977	14.4793475925751
1978	13.673831727831484
1979	12.909506676012015
1980	12.341235152330695
1981	14.018685626495234
1982	13.339118659155805
1983	14.620464507763895
1984	12.550364499998427
1985	12.090866928394231
1986	9.99272552113418
1987	8.644062615771233
1988	7.944520758356592
1989	6.260800015926309
1990	7.285085213036176
1991	8.970458802027343
1992	9.423971697060644
1993	9.812467284020759
1994	8.996469381113497
1995	7.825953003045353
1996	8.628250236502975
1997	8.911537972985307
1998	9.895847095690069
1999	9.709652852335095
2000	9.740801919828733
2001	10.816203573392931
2002	11.249189109458184
2003	12.258776251795581
2004	12.574571576907218
2005	12.537290933815278
2006	13.699740086154277
2007	15.022754001903904
2008	18.208092270263172
2009	17.436546314012123
2010	17.766506014975427
2011	16.69200884671201
2012	18.446053509013133
2013	16.878235299356227
2014	17.301317068109988
2015	16.24009502050999
2016	15.903672587329472
2017	14.590581783355747
2018	13.815454721299941
2019	14.139459554386905
2020	12.281154442454715