Year % of total exports 2005 0.9766384799656466 2006 0.6858159988831196 2007 0.5274015735698109 2008 0.5800519939778004 2009 0.7503744086258277 2010 0.5347617022278438 2011 0.39273534552580075 2012 0.39235020513855173 2013 0.4752895389656558 2014 0.4969574744510678 2015 0.9154386229724772 2016 0.7512172424918068 2017 0.4538115082596864 2018 0.4426940056034402 2019 0.3631520357833733 2020 0.2007877785401666