Year % of total exports 1995 8.753228837183407 1996 8.05912089469543 1997 7.847584570753952 1998 7.8179862399075954 1999 7.6248859308728205 2000 7.087167954789917 2001 6.945513480278157 2002 6.71395176560826 2003 6.430612803754147 2004 6.211349617357918 2005 6.431442941250167 2006 5.888448970753226 2007 5.761388731660809 2008 5.64447538811953 2009 6.201219840691254 2010 5.7247598109399505 2011 5.516830681760835 2012 5.561585247554185 2013 5.803896663761789 2014 5.997047821181318 2015 6.543282649721513 2016 6.6141970671784 2017 6.492426613973838 2018 6.47933617216133 2019 6.629992412632179