Year % of total merchandise exports 1992 2.283916917513536 1993 3.47014112134256 1994 1.1395880232695825 1995 1.3656745303890934 1996 1.2587918098289368 1997 1.413360812577121 1998 1.8634363014372508 1999 2.114600145423298 2000 1.7739034373753781 2001 2.6491267520964836 2002 2.395324507292446 2003 2.200595982728632 2004 2.660882873878004 2005 2.1151223509545276 2006 1.8570753204721628 2007 2.675391453166167 2008 2.3997978936722126 2009 2.5137649928576193 2010 2.454920796812749 2011 2.1243122521656015 2012 2.2342057212531197 2013 1.586847686936006 2014 2.546666460306046 2015 3.1861069843081644 2016 4.4755049906491 2017 4.588612590198035 2018 3.899179570778187 2019 3.0760436047287314 2020 3.2596629157849564