Year	% of total merchandise exports
1960	1.0810810810810811
1961	1.2048192771084338
1962	0.91324200913242
1963	0.7259528130671506
1964	0.7250418293363079
1965	0.836382645060115
1966	0.5907626208378088
1967	0.8821676118462508
1968	0.22637238256932654
1969	1.152214068194299
1970	1.0062882253947893
1971	1.6203523646546358
1972	0.3316796068428773
1973	0.552728494289198
1974	1.1256682183199755
1975	1.375658067826898
1976	1.3188264866154158
1977	1.3141802751153446
1978	2.4488335966726136
1979	1.2881896511290358
1980	2.730863698559637
1981	5.906243208894203
1982	2.355848498762935
1983	2.077464755614789
1984	2.0367880172881714
1985	1.0198555010581758
1986	0.9146756173508965
1987	0.7181896239259743
1988	0.5542322783606728
1989	0.6602960418204029
1990	0.4354617888781846
1991	0.24064652734653982
1992	0.15004839076032747
1993	0.13876256404753265
1994	0.2007567306019201
1995	0.6333002772280215
1996	0.606196124533234
1997	0.6804049457218422
1998	0.6049368944358586
1999	0.5909179611686296
2000	1.2575416160835893
2001	1.5942720004900517
2002	1.2554080091793822
2003	1.3554827799451659
2004	1.2207939235434022
2005	1.9676010291933135
2006	3.072893628371066
2007	2.6490669324015794
2008	2.7174155713131523
2009	2.8885862005875893
2010	2.0641595902692487
2011	2.5439526411904962
2012	2.3979641953112787
2013	1.4220909041915304
2014	1.3657729793428675
2015	1.451816215562387
2016	1.150331373141004
2017	1.3823840004589145
2018	1.240488053102536
2019	1.2575025497252583
2020	1.3281472090924653