Year	% of total imports
2005	2.4026026279184722
2006	2.173778282880463
2007	3.2808856995267153
2008	2.1776746827237807
2009	2.784625945598307
2010	3.5493680005933275
2011	3.6304268021716872
2012	3.7244270718406205
2013	6.774298856565605
2014	8.910474142139185
2015	13.641769136974297
2016	17.333862846915267
2017	16.702301545370492
2018	13.810746184682468
2019	15.114308442569085
2020	7.604160780975746