Year	% of total exports
1995	27.806410004766896
1996	26.580602006688974
1997	28.533099132725866
1998	38.21337389320438
1999	62.542949184803
2000	46.81596081182547
2001	40.87787432285433
2002	57.634615087995236
2003	48.58619013468216
2004	22.547411974726334
2005	19.164862030812245
2006	17.657710116095448
2007	18.170597606528467
2008	19.151050898961774
2009	35.04185808269168
2010	68.7260034904014
2011	19.792694643933114
2012	44.81109160860237
2013	69.76637631530556
2014	70.71074116691219
2015	67.9234396063441
2016	74.9428170432698
2017	80.45412502275502
2018	79.59286936838585
2019	82.32840758740207
2020	74.58677742938838