Year	% of total merchandise exports
1960	4.270384691260398
1961	4.414909750546621
1962	4.429520687865467
1963	4.6171179112828185
1964	5.965042096035656
1965	6.365336705163038
1966	5.5150646467688995
1967	5.05379252002661
1968	5.572203699985046
1969	6.164216709244265
1970	5.487616014316417
1971	5.905406663415619
1972	6.054628284538121
1973	5.906869257865836
1974	5.203114912476912
1975	5.133549346381994
1976	4.717767150755252
1977	4.847541116851577
1978	4.791035709306845
1979	4.645504110025203
1980	4.933195171088876
1981	5.401336942693338
1982	5.233708900692091
1983	4.675100867845047
1984	4.860310128017595
1985	4.661360833280492
1986	4.969142536935745
1987	5.054071327378045
1988	5.078389377338082
1989	5.443342732864185
1990	5.528167621384316
1991	5.939488303793867
1992	7.299660629868352
1993	7.997672802501328
1994	10.765164708024313
1995	11.29215430830536
1996	11.166501653183003
1997	11.439381356636744
1998	10.860347379488367
1999	9.315445651808558
2000	10.035316989301624
2001	10.05371894345912
2002	10.457421736264639
2003	10.86813764136235
2004	10.822918993584572
2005	10.948078204537127
2006	10.88289119563522
2007	11.97634755811518
2008	12.510795382210738
2009	12.05371640744107
2010	12.298453055962165
2011	12.669214836174842
2012	13.533903684639384
2013	13.824547023922898
2014	13.500928923631141
2015	13.550932173355005
2016	13.572181352405687
2017	14.1597473350302
2018	14.165137611626847
2019	14.836201394916198
2020	15.089771587056507