Year	% of total merchandise exports
1960	0.28213166144200624
1961	0.23054755043227668
1963	0.02718129926610492
1966	0.061149612719119444
1967	0.05741626794258373
1968	0.08066142367412785
1969	0.09125616910326846
1970	0.07136909718092066
1971	0.09310849356369065
1972	0.06613163558106169
1973	0.18533710084161273
1974	0.8361837123684691
1975	0.0299815827420299
1976	0.06223981715778304
1977	0.04735523845930017
1978	0.14027819657301677
1979	0.1682338982450548
1980	0.17777594739479302
1981	0.333460280122027
1982	0.4626739567394397
1983	0.3455407554371573
1984	0.27274892084622615
1985	0.21205203727817346
1986	0.4384448583578575
1987	0.43001717118851546
1988	0.4841550961183691
1989	0.41524437493887695
1990	0.26792058511318967
1991	0.46047435566967987
1992	0.6048447468682719
1993	0.676476374159286
1994	0.7076056660291263
1995	0.9658607208928787
1996	0.7980607972449592
1997	0.9332957984677891
1998	0.8814869305537102
1999	0.8456251146061179
2000	0.728894591717556
2001	0.7303026664488057
2002	0.6254812205194633
2003	0.5230749615421035
2004	0.6969128988933985
2005	0.6071531715062252
2006	0.6488335513114358
2007	0.718903190494521
2008	0.9117797628852404
2009	0.6979276182239684
2010	0.866495082926445
2011	0.9940611873945866
2012	0.9006378091779639
2013	0.8647812522363685
2014	0.9666368069727254
2015	1.0506115611794569
2016	1.059207319526657
2017	1.1137185153555211
2018	1.2040075662594019
2019	1.1155584345699512
2020	1.1131800869514148