Year	% of total exports
1995	7.27103666502741
1996	4.410816412745703
1997	4.653433333131427
1998	7.730452626953211
1999	7.99500163230401
2000	7.566961796826302
2001	8.79786792956764
2002	11.42137158884623
2003	12.51572662430593
2004	13.108261578389943
2005	10.683287944645757
2006	10.194308881858227
2007	9.121269978715366
2008	9.382979918650957
2009	15.883195374472384
2010	8.252164748095792
2011	6.459080327539334
2012	7.964326773314181
2013	5.52742256973405
2014	5.583004605014148
2015	7.437663955012984
2016	6.140621005488991
2017	7.849724496658094
2018	7.755895868825069
2019	11.437357551443847
2020	4.613704719830271