Year	% of total imports
1998	5.853426996534374
1999	6.162824780238355
2000	5.805684585447933
2001	6.197278792253901
2002	6.866080070279717
2003	6.17501936075833
2004	5.477774480301441
2005	5.021920973748154
2006	4.590694973753999
2007	5.329435188515457
2008	4.595249172386913
2009	6.068464469102953
2010	5.5992286309336325
2011	4.623656722013683
2012	4.113145516072441
2013	4.268682902074076
2014	4.677633976946634
2015	5.28744610665766
2016	5.613891894083204
2017	5.385047891265298
2018	5.156279481155737
2019	5.28737941895745