Year	% of total exports
1995	5.051788210168262
1996	5.115773208121279
1997	5.009933433346481
1998	4.926811937668278
1999	4.682748301395061
2000	3.855617037564795
2001	4.006194310596012
2002	4.104015303846116
2003	4.234486283318357
2004	3.9534106622849383
2005	3.728979029050318
2006	3.752135375115526
2007	3.8072443924646087
2008	3.790753816217444
2009	4.442720143496697
2010	4.691793129927076
2011	5.235803947470183
2012	5.347127402034712
2013	5.596349555919616
2014	5.396474836924768
2015	4.831126544371127
2016	4.794654950825854
2017	5.42268410416325
2018	5.435346997426721
2019	5.550777361424566
2020	1.8035401591196538