Year	% of total merchandise exports
1960	0.0054208151713438365
1961	0.014959489701887287
1962	0.14576739243748715
1963	0.0908190287056245
1964	0.07419585250891848
1965	0.10349401545855612
1966	0.0994591788744915
1967	0.09650065102634327
1968	0.010338105576200815
1969	0.027138006688147313
1970	0.02324044878406939
1971	0.01283764811821646
1972	0.030181414646912565
1973	0.022084929232386197
1974	0.05743593457880465
1975	0.12450311350328193
1976	0.050300364650773866
1977	0.1069450189392228
1978	0.021111504369708024
1979	0.015158921150682837
1980	0.004136439369083488
1981	0.06149230642487528
1982	0.16163060846099603
1983	0.206436443011361
1984	0.06341554471825148
1985	0.054389515850598945
1986	0.13033490423871333
1987	0.1939285861147913
1988	0.18460698345067944
1989	0.27198052372091025
1990	0.09404746465942387
1991	0.03541088817664879
1992	0.24729242996839093
1993	4.220787866429548
1994	0.9094882841119805
1995	1.452539668717589
1996	0.8497917070922935
1997	0.7468404079594081
1998	0.8836885016646392
1999	1.3769354425392974
2000	0.9359697149129736
2001	0.7536384582124575
2002	1.0132979870447636
2003	0.8183887652372931
2004	0.8289069711230812
2005	0.7519582615906543
2006	0.5513738788595904
2007	0.722999000973876
2008	0.8355502909029083
2009	0.7145895931727528
2010	0.6528181899456866
2011	0.7042754644228754
2012	0.7873366677869928
2013	0.6523323364096629
2014	0.8150626960015972
2015	0.9919755382664378
2016	1.1228891003076085
2017	1.077204687653119
2018	1.3021083774543398
2019	1.19644460879399
2020	1.6217894743141745