Year % of total merchandise exports 1979 0.025516713447307986 1980 0.02450379808871516 1981 0.02324770428920144 1982 -1.0704857179488259E-14 1983 0.037993920972644375 1984 0.18231540565177756 1985 0.07985625873427829 1986 0.01717327837884252 1987 2.3041474654377883 1988 12.965787872327628 1989 0.7962154571614634 1990 2.167990616507288 1991 3.8804278103648766 1992 0.1950414962716924 1993 3.8379166831675153 1994 9.606281214537278 1995 11.278430296063428 1996 6.446815645301059 1997 20.046452197483557 1998 19.603426496612176 1999 0.19206017139978782 2000 0 2001 0.007844170436709789 2002 0 2003 0.011091534637615115 2004 0.012622880794563472 2005 0.008022690163061593 2006 0 2007 0 2008 0 2009 0 2010 -1.4527490884317593E-16 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 1.1535985396679393E-14 2019 0.0845310185103814 2020 0.00016625501355090622