Year	% of merchandise exports
1974	91.83641196680331
1975	94.5077786373795
1976	90.81265740601721
1980	95.43622221587147
1981	92.16341915676202
1982	88.41569105373709
1983	89.6585395803066
1984	84.32924662168834
1985	65.69229201077034
1986	49.662184445548014
1987	37.45428186131802
1998	0.0004767757676249025
1999	0
2000	0
2001	0
2002	0.010134565326200766
2003	0
2004	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0.0020184500316577877
2013	0
2014	0
2015	0
2016	11.30082846066268
2017	15.357742606313035
2018	19.374219822067722
2019	14.779087575867086
2020	28.392511561772032
2022	0