Year	% of total merchandise exports
1961	0.46511627906976744
1962	11.527377521613833
1963	4.176904176904177
1964	4.81283422459893
1965	2.0700636942675157
1966	3.840877914951989
1967	2.4516129032258065
1968	3.329506314580941
1969	5.502422178521751
1970	4.308359169234058
1971	11.03791353874715
1972	6.476192076346651
1973	8.682424168297457
1974	10.570687807243921
1975	10.472052756495007
1976	13.058219602091448
1977	18.14837747964683
1978	20.846468312091467
1979	18.537143568865254
1980	17.051926489625274
1981	15.88754608637361
1982	12.17363040969886
1983	12.08548737042295
1984	13.392551829438007
1985	11.321225426604132
1986	10.867145481474331
1987	11.436822075063057
1988	17.528184676739013
1989	20.14167264530731
1990	18.26138303814158
1991	20.74725602626427
1992	16.25336496653661
1993	19.4629784389837
1994	19.48024332083274
1995	27.246198014850346
1996	30.199868407512113
1997	21.414442231938622
1998	22.614645227994842
1999	23.39167740028021
2000	23.362398987125164
2001	23.715299830040088
2002	22.98713188001192
2003	19.766957021482913
2004	20.6914350863468
2005	21.290283735162436
2006	20.641398882800882
2007	21.029018673881897
2008	20.688753312379994
2009	22.831512432150916
2010	26.707744290767177
2011	28.22228160259346
2012	28.28754791237527
2013	32.244721332700216
2014	37.585035580617024
2015	38.163755194214154
2016	35.01888898833816
2017	38.53935193205295
2018	38.70946830902477
2019	36.80017112930021
2020	47.89955437235478