Year	% of total merchandise exports
1960	0.36469730123997085
1961	0.34790171776473144
1962	0.32003657560864096
1963	0.3347249212001748
1964	0.31708296679084397
1965	0.4112158357695333
1966	0.43977461202106455
1967	0.40373060885336365
1968	0.3997309747090847
1969	0.7086811693122619
1970	0.5387712083100176
1971	0.5504529815176147
1972	0.6022659589607898
1973	0.694493619621785
1974	1.0645278194882468
1975	1.0839348813779566
1976	1.2029307058431533
1977	1.3248725673518749
1978	1.0178789819215792
1979	1.0629896508047774
1980	1.0966316019818376
1981	0.9798195433848852
1982	0.9328800090307119
1983	1.4260404786298646
1984	1.7055210871085815
1985	1.623062541409193
1986	1.6703727045745398
1987	1.7790906272117522
1988	1.8240414382030814
1989	1.3652591592311476
1990	1.6541816987052098
1991	2.5410885030947266
1992	2.0297322361128622
1993	1.9442748585193081
1994	1.7940702941826239
1995	1.305598371552816
1996	1.1556591545232178
1997	1.1364937796404357
1998	1.2681618263217542
1999	1.0071766921561178
2000	0.7225534576091214
2001	0.8016174885945405
2002	1.5236223558558617
2003	0.7209989134330147
2004	0.7701452453123271
2005	0.7293079243282109
2006	0.651378273936082
2007	0.6237538115706113
2008	0.6492874565449805
2009	0.8794499981662127
2010	1.2169770877920338
2011	0.7588084361694023
2012	1.0448546777799343
2013	0.8684385871124136
2014	1.4517528608386032
2015	1.7194289785203085
2016	2.194629325537155
2017	2.163077535538932
2018	1.8327823643889074
2019	1.3426196758988302
2020	1.3139617327051811