Year % of total exports 1995 8.451438052748511 1996 7.708567674227124 1997 7.452044516685892 1998 7.407421320968557 1999 7.3167670591917995 2000 6.818982943626933 2001 6.741987034145711 2002 6.6485950652718895 2003 6.38680662539504 2004 6.224345612757801 2005 6.286158074625621 2006 5.818469838308496 2007 5.730946732007765 2008 5.609718207076068 2009 6.195132706761368 2010 5.863918338952405 2011 5.750347484004384 2012 5.84970214185958 2013 6.120278702555537 2014 6.304572445067603 2015 6.7368846052074485 2016 6.857035390514007 2017 6.693288572726472 2018 6.696043286041494 2019 6.997252749733696