Year	% of total merchandise exports
1962	0.724929520741039
1963	0.13783597518952445
1964	0.22675736961451248
1965	0.3663003663003663
1966	1.600985221674877
1967	0.12126111560226355
1968	0.021372088053002777
1969	0.11555475309199242
1970	0.04658963846440552
1971	0.05432978177537654
1972	0.17229101100365257
1973	0.16918960928204457
1974	0.14043075285665715
1975	0.5033147243545011
1976	0.16609473667716512
1977	0.41224457181046187
1978	0.11613748070547593
1979	1.1032641882299592
1980	0.90178910791564
1981	0.9421385603180659
1982	0.32579889428652603
1983	0.2132321783445841
1984	0.6585314188641942
1985	1.2181167743689116
1986	0.6774489833840949
1987	0.4407559139982486
1988	0.6178336780060301
1989	0.5590974143000327
1990	0.5929102401973707
1991	0.5441528735420528
1992	0.44401059076464705
1993	0.9755197025373719
1994	0.8858869202689613
1995	0.9912992122055538
1996	1.5641476274165202
1997	1.0946104284469074
1998	0.47006967398926497
1999	0.7323061624365138
2000	0.798823411322671
2001	0.8504677329749442
2002	1.0674577335837891
2003	0.7657409853843914
2004	0.8359788337222956
2005	1.0172614369977395
2006	0.9281618282253471
2007	1.1917633046797413
2008	1.5255737624239838
2009	1.5464813638837027
2010	2.4173008501870745
2011	1.7683211133222747
2012	2.1972705002519235
2013	1.8806714335332746
2014	1.7600311309403511
2015	1.7134332945286954
2016	2.322969884574615
2017	2.5800500868490777
2018	3.7169311606997955
2019	3.6960282651362504
2020	3.7295657090351773