Year	% of total imports
2009	4.5904791600826185
2010	3.152039793661227
2011	3.4187107178585427
2012	4.614749822634072
2013	5.25573242492043
2014	5.695935809221204
2015	7.7202692741455
2016	6.559708380696211
2017	5.416871966125858
2018	3.519927911814495
2019	4.760582619117903
2020	2.860108724538864