Year	% of merchandise exports
1973	0
1974	0
1975	0.000743599654386939
1977	0.005029049108410551
1978	0.002987910535225256
1981	0
1999	8.98954714100898
2000	6.464334324896825
2005	1.5747754095472961
2007	0.54754745232019
2009	6.144380970668715
2010	1.7761705361064843
2011	1.9802991385341293
2012	2.702355444105561
2013	30.990827067998566
2014	17.531707738081543
2015	15.620451580135642
2016	7.506100852919058
2017	7.272065804688036
2018	0.30731981875368575
2019	0
2020	0.0020073258666629427
2021	0.5141148288335774
2022	21.491844931842966
2023	0