Year	% of total exports
1995	0.5314000493442903
1996	0.9107060211104641
1997	0.5103668261562998
1998	0.760841998478316
1999	1.4375673859712172
2000	2.6674990777263825
2001	3.472399530204769
2002	3.4285581460217105
2003	3.115379313513762
2004	2.4170555989557254
2005	1.9730501873257187
2006	1.8591238473200336
2007	1.7824648623706412
2008	1.614069164933037
2009	2.3129318773776366
2010	2.2665998616181136
2011	1.6036891290486708
2012	1.8984027232259755
2013	2.620631808031919
2014	2.8356956445559254
2015	3.0833290213398024
2016	3.3985131921677443
2017	3.072790569306525
2018	2.8887238039358567
2019	3.0732652132583995
2020	1.457647539749134