Year	% of total imports
2003	24.967663904468967
2004	21.70199224245267
2005	21.158049468014198
2006	21.3059734331359
2007	18.25026493718271
2008	14.822638000922264
2009	16.740793588512442
2010	16.107616527134713
2011	14.319826642796334
2012	14.078617046295255
2013	14.082796283689838
2014	15.633360319334127
2015	16.79314269484556
2016	16.94779903454394
2017	17.78603759592102
2018	19.50789530987694
2019	20.8529410133
2020	11.173483480162043