Year	% of total imports
2001	16.128172396403397
2002	21.27314433460854
2003	21.068301906387877
2004	18.587103180698346
2005	22.757932360571758
2006	25.288272259339735
2007	21.787496469569774
2008	21.266953848669324
2009	14.797032024121886
2010	16.65172023918128
2011	17.57957884036853
2012	23.1251277659945
2013	16.087942312517182
2014	16.36909776683095
2015	14.058291711340285
2016	20.85314156357604
2017	17.305216891957123
2018	19.20253664462222
2019	13.152339670768562