Year	% of total imports
1998	2.3954162228644615
1999	2.2885080157402604
2000	2.2129703415461353
2001	2.201309967060925
2002	2.3556571399784945
2003	2.4084649180796625
2004	2.2853664199159143
2005	2.002585523131153
2006	2.5779137475538914
2007	2.9498493465558115
2008	3.026805296723517
2009	3.3044005176412066
2010	2.8087144334853
2011	2.0545975965002716
2012	2.0412742675046416
2013	2.008523233137964
2014	1.951335511329278
2015	3.187839659751543
2016	3.236393343173676
2017	3.3356341737036903
2018	3.2710408029323244
2019	3.522783633303693
2020	1.6759368894664033