Year	% of total merchandise exports
1960	0.9916839105141919
1961	0.6915224470381618
1962	0.7032590051457976
1963	0.5202946246669802
1964	0.8106558943144907
1965	0.6765455784717138
1966	1.1409694726237611
1967	1.529552186021838
1968	1.121203519727505
1969	0.7980312884513974
1970	0.8434960848214944
1971	0.9397286717786477
1972	0.9808063392745002
1973	1.0482180293501049
1974	1.0988112459903139
1975	1.466449841994787
1976	1.0935957384483526
1977	1.120639405126374
1978	1.6892744841515757
1979	1.8307700131495783
1980	1.7727499372305777
1981	1.5382687546516398
1982	1.442332936163338
1983	1.8192231511458639
1984	2.014262897893994
1985	1.9794006543831393
1986	1.612026171306285
1987	1.3491644379333254
1988	1.4481008037460446
1989	1.5257536918000534
1990	1.753739756978703
1991	2.0752429993625228
1992	2.172419052858212
1993	3.3463445429640033
1994	3.7514357864722916
1995	3.3795463426292804
1996	4.133197503490205
1997	3.849549161172517
1998	2.8942217622248
1999	2.850219517731046
2000	3.684677752957035
2001	3.6339596832437175
2002	3.2179884850732225
2003	3.2672254553644877
2004	3.209183572570371
2005	3.0485362812051213
2006	3.1258631972246267
2007	3.0770776610727135
2008	3.3919303642668464
2009	4.486653707326019
2010	4.403011137410844
2011	4.964232022745387
2012	4.5859936193900035
2013	5.001098329054981
2014	4.633985693461691
2015	5.035767836942238
2016	5.041108574197716
2017	5.642028633926236
2018	5.725110277884894
2019	5.71292457714727
2020	6.472047202529774