Year	% of total imports
1997	6.204679674067429
1998	6.485188150520416
1999	8.504847763225039
2000	7.772514650809111
2001	6.298020087720306
2002	6.904021434136269
2003	6.403367614550678
2004	3.9554051070718965
2005	3.3812797175501257
2006	2.920779944036425
2007	2.699336075933037
2008	3.0432477310159944
2009	3.500468634753852
2010	2.9832015578232514
2011	2.954720985539399
2012	3.27232280691524
2013	3.2420360774728167
2014	3.6917008923110903
2015	4.510287378090425
2016	5.332950260173843
2017	4.696653179677666
2018	4.689481170132498
2019	6.359114199365845
2020	8.080194353064423