Year	% of total imports
2005	18.913515364476442
2006	17.882264913928655
2007	17.27127454183233
2008	17.604323854093042
2009	15.544343382730883
2010	13.362711277453517
2011	13.440690682540598
2012	13.697380042739859
2013	12.185256781874136
2014	13.112966582155114
2015	16.53641504761872
2016	15.891904774038714
2017	15.357268495152296
2018	17.971392046446645