Year	% of total merchandise exports
1960	9.46822308690013
1961	7.5181891673403385
1962	9.795397627935548
1963	8.522875816993464
1964	9.82880962975106
1965	9.221280541717885
1966	9.155386929176922
1967	8.247904305882166
1968	8.821368958683678
1969	7.232331303589923
1970	8.715027810181814
1971	9.111534400290758
1972	9.620490116167261
1973	9.348700257092004
1974	9.850550202081886
1975	10.50260980862717
1976	8.775197283379823
1977	8.24155251490533
1978	8.254548073579782
1979	8.28238320994063
1980	9.140485042852879
1981	12.518150985345185
1982	15.384522563767208
1983	16.607576094148737
1984	15.919045774480301
1985	15.240733783961366
1986	12.697740696608161
1987	13.92843591588471
1988	14.51604688782264
1989	14.014542108265088
1990	14.278823212565225
1991	13.782914515000366
1992	15.406070952066047
1993	15.749980653126864
1994	15.584050818470038
1995	14.97713423093738
1996	18.159415925170986
1997	18.822899721026495
1998	19.444769388491316
1999	19.803838041988314
2000	27.760748012790003
2001	27.153740937214906
2002	27.31236136841571
2003	28.712069388776122
2004	29.599707875816684
2005	30.140976076734248
2006	30.10782564175428
2007	29.086932587289255
2008	29.722510421868886
2009	30.247092081439547
2010	31.601487809076417
2011	34.200756791416694
2012	33.76474612767355
2013	34.414845722630425
2014	35.381619456324195
2015	35.835076494042966
2016	35.679892404464375
2017	37.17204764930039
2018	37.2413468531501
2019	38.97297116159194
2020	40.42545838701543