Year	% of total merchandise exports
1960	6.194191183381896
1961	5.319100197003711
1962	6.185751318494681
1963	5.24735197435169
1964	6.6767887644714365
1965	6.12183353437877
1966	5.029212968266697
1967	3.8191170381013677
1968	4.060661985902223
1969	4.733930700282586
1970	4.485709694639885
1971	4.242384445570127
1972	6.390606913382822
1973	7.598057739010596
1974	5.58103649425409
1975	6.021033539707716
1976	5.1515881225728775
1977	5.5553018792534115
1978	5.9931356571478664
1979	5.934097346192137
1980	5.660837671136446
1981	5.867438140883934
1982	4.929281355382652
1983	4.060404167229342
1984	5.131237039901019
1985	4.886985136162077
1986	4.5274944777901265
1987	4.374547187423309
1988	4.198277087680865
1989	3.7181091847873486
1990	3.453614112421949
1991	3.6998319267907047
1992	4.084071172767821
1993	3.6813042320641802
1994	3.937252290723076
1995	4.525161608624782
1996	4.4680601510545035
1997	4.336119858989567
1998	5.012180228059291
1999	4.326385732386235
2000	4.767206950276503
2001	4.954682589938697
2002	5.456169870047516
2003	7.00926377731277
2004	6.519628011743292
2005	7.026452553546136
2006	6.427725738063296
2007	6.692326555637322
2008	6.2130122960131775
2009	5.725313849239454
2010	5.9943344715977025
2011	5.599467745915324
2012	5.937138154950432
2013	5.972435308798006
2014	6.91872061816291
2015	7.166222260294611
2016	6.933364836764625
2017	7.15373267489363
2018	7.953787639800043
2019	7.271023391711831
2020	7.110447393688175