Year	% of merchandise exports
1962	21.07945156476213
1963	49.59534460290026
1964	43.462855969311015
1965	54.4602949157701
1966	53.586011610423704
1967	47.3016286053403
1968	53.46785763608446
1969	47.94847868289043
1970	44.28411398085516
1971	37.784400348684514
1973	33.09124358458422
1974	21.714433508590805
1975	23.732315377307984
1976	17.675322543937703
1977	23.89209681848403
1978	37.60888848879493
1979	44.486833309414585
1980	26.165838215568403
1993	39.37845417028978
1994	42.435882533143065
1995	44.509040386394275
1996	48.59215425871039
1997	36.0263498531514
1998	58.82723854073393
1999	60.842743645858214
2000	68.22084356913852
2001	48.973308513044564
2002	47.88963233618233
2003	36.62719305099411
2004	16.436288748728344
2005	37.802759163433315
2006	48.07446588057678
2007	21.784244729078857
2008	11.211648386251063
2009	2.6634255625947194
2010	3.110069555366101
2011	4.122377400752835
2012	8.332355255081977
2013	7.138195365302573
2014	0.6560191486252624
2015	80.1798064856203
2016	63.51347406591825
2017	81.54418241078776
2018	51.90306121001035
2019	74.88976585547204
2020	39.296395924521185
2021	19.835123827331568
2022	37.99558315916634