Year	% of total imports
1999	8.263638576914206
2000	7.375739551334607
2001	6.883002319120747
2002	6.902219973234983
2003	4.39318569948236
2004	4.65093657989413
2005	3.8084570622022884
2006	3.2801072731864735
2007	3.6716509828521997
2008	3.5396694634104717
2009	4.3386403310332495
2010	3.802806055184464
2011	3.6215587368770894
2012	4.137591270221621
2013	3.740482229356819
2014	3.4313776288256985
2015	3.3720989608729086
2016	3.9767150610158057
2017	5.138306546354778
2018	5.563883233878367
2019	5.695767704010498
2020	2.8201084583864966