Year % of total imports 1995 1.7557888881162644 1996 1.9520241941026875 1997 1.403831770323917 1998 1.7002193036493112 1999 1.9984373121769445 2000 3.243640756937058 2001 5.739999291358113 2002 5.805499250903322 2003 3.7670966571337234 2004 3.0356752556038566 2005 3.0009247035423705 2006 2.9269688743961773 2007 2.4390819080088804 2008 2.103172856353294 2009 2.511807499348667 2010 2.03145496172011 2011 1.5261166924508514 2012 1.9317292644757436 2013 2.8720958543138537 2014 2.98495881989151 2015 3.0469077095627672 2016 2.970742685671418 2017 2.9647653259460807 2018 2.8302776816881035 2019 2.8894777702528915 2020 1.3537445083949189