Year	% of total exports
1996	12.18763353001261
1997	10.40711239034097
1998	11.534211588336692
1999	15.772088974942921
2000	14.612066803878518
2001	16.408576893713047
2002	15.675594352584977
2003	15.095913999414249
2004	15.389572993575168
2005	13.947427587358302
2006	12.754700710967724
2007	15.28059536119196
2008	14.442673772299743
2009	9.053829772149612
2010	9.002109166249232
2011	12.078303757584631
2012	9.272816829185775
2013	7.72936294099513
2014	5.023219519882187
2015	5.408383769818563
2016	4.044275467325457
2017	4.827523820529804
2018	4.548266929325204
2019	6.71867329850776