Year	% of total exports
1995	33.394447354635936
1996	29.404617253948967
1997	26.757725033587104
1998	34.778115300954504
1999	36.27015462879694
2000	10.62184993067096
2001	2.273096281863939
2002	2.9300962745918797
2003	12.813155200034993
2004	14.075067024128687
2005	7.1893111533867184
2006	3.3954243261780426
2007	9.284563428573572
2008	12.532188841201716
2009	17.029912644489546
2010	29.91296716155928
2011	34.177884699624734
2012	25.065567149517914
2013	24.82173939258457
2014	18.61157074004238
2015	13.901668980013177
2016	10.64781556706994
2017	8.872244310585062
2018	9.430331023864511