Year	% of total imports
2005	4.446341705448453
2006	4.550155954400065
2007	4.799981494472419
2008	5.401205220255579
2009	4.763175057885257
2010	4.236465245247544
2011	3.7397445463569836
2012	3.0101107057247867
2013	3.0601736892221947
2014	2.6999790908544217
2015	2.1013921117376912
2016	1.9715699458632077
2017	1.9964946641720938
2018	2.0882411585998053
2019	1.8005266971038394
2020	0.4774735063192338