Year	% of total imports
2006	20.140575079872207
2007	19.85998662690826
2008	20.856971471298
2009	19.86796159499538
2010	20.835895192549316
2011	18.138887318487175
2012	18.177156363371733
2013	16.885433807274538
2014	19.3193714359993
2015	19.85773430434172
2016	19.386929655124476
2017	18.049679100012604
2018	15.201776876520864
2019	15.378925750770387
2020	12.301494806727153