Year	% of total exports
1995	20.421479360212814
1996	22.184190698570266
1997	19.27403738805928
1998	19.279368008382612
1999	21.780040379547433
2000	18.752750693932825
2001	16.80844711498818
2002	17.157082749118754
2003	15.574149479722765
2004	14.951417808317686
2005	13.356240710298772
2006	12.595058123613748
2007	10.045740890808151
2008	10.115344756747925
2013	9.521218920779969
2014	10.452978998366499
2015	10.681715784739684
2016	10.30866515912311
2017	10.390325466954042
2018	10.226516898138938
2019	10.064688372747016
2020	3.9823063384958326