Year	% of total merchandise exports
1988	0.3905935025664633
1989	0.00208441318399318
1992	0.11495882116344672
1998	0.20191436493921527
2000	56.41388990105175
2001	27.84342942181667
2002	41.50616582060489
2003	46.12541025499762
2004	56.96431314724192
2005	55.55547979324334
2006	50.15132171022506
2007	45.5273615430584
2008	30.57791672714916
2009	8.828722858428344
2010	18.861887879103453
2011	14.676417668979907
2012	16.42788311495353
2013	19.70686124632999
2014	18.974095354537624
2015	12.70986330132968
2016	12.977964373826442
2017	12.160517213787191
2018	11.06608903928973
2019	14.988252251363255
2020	13.053239583937696