Year	% of total exports
1998	2.007113040822023
1999	3.4123069455696395
2000	3.490644354400077
2001	5.683469532253067
2002	7.498865270406697
2003	8.282987035853486
2004	9.756259833491171
2005	9.933913676745496
2006	14.711375482256475
2007	19.380937446904248
2008	21.224647940559134
2009	12.864414776919574
2010	9.627830998441377
2011	12.640840634336811
2012	13.877359223297022
2013	15.331495284963276
2014	14.264643137649122
2015	19.876095265094687
2016	19.763100561058767
2017	18.65497614261026
2018	18.943671903637412
2019	22.782122102922237
2020	8.006839784545765