Year	% of total merchandise exports
1960	0.28683940887644355
1961	0.22413989417811908
1962	0.1994962727306193
1963	0.2785825152259579
1964	0.3142935112752797
1965	0.3949769682932756
1966	0.3700378587361192
1967	0.417352300298388
1968	0.4723390715716553
1969	0.3308367630021949
1970	0.3967178308165262
1971	0.5985916179622339
1972	0.6023144793769604
1973	1.085488643505196
1974	1.8566000317653881
1975	2.1974345588711235
1976	1.3332989616721163
1977	1.5491061777376363
1978	1.2887097697340941
1979	1.3140796458519497
1980	1.517752387031367
1981	2.0026519294135423
1982	2.1377537985777675
1983	2.298426388347873
1984	2.082113721998423
1985	2.168068205389187
1986	2.0104406759629887
1987	1.8575786273251151
1988	1.9929896031873673
1989	1.5475923180674953
1990	1.485188597496103
1991	1.331614471302298
1992	1.489012171391433
1993	1.3058733068484127
1994	1.1046738656427306
1995	1.1094721536075773
1996	1.2141423234102648
1997	1.2654911958026225
1998	1.1077796444860182
1999	0.9950366532218338
2000	0.8912445176783763
2001	1.1449097152511147
2002	1.3250324228335344
2003	1.3405721655023992
2004	1.4751776653845279
2005	1.5107431917882976
2006	1.532743646200935
2007	1.5322518020016547
2008	1.8678471244862487
2009	2.1161734263359837
2010	2.1369237497003026
2011	2.2603944337435866
2012	2.1853381098582267
2013	2.243366061368242
2014	2.244051867845415
2015	2.219463369660534
2016	2.3380951556823364
2017	2.5354247026843004
2018	2.246346984468383
2019	2.586848072252613
2020	2.5555231891588317