Year	% of total exports
1995	8.930090395694002
1996	9.06295639547154
1997	8.973991447707336
1998	7.942982558909728
1999	7.882987355996794
2000	7.415909801594179
2001	7.3719276553471
2002	7.082437956820391
2003	7.270820159813768
2004	6.949325505662851
2005	6.666852178855801
2006	6.278818594844902
2007	6.112710715575256
2008	5.722858567338308
2009	6.403547338868572
2010	5.314204797387423
2011	4.63688779510552
2012	4.6123848386123445
2013	4.894932595249588
2014	5.48084961524167
2015	6.353760483518755
2016	6.852911556586412
2017	6.481606115995358
2018	6.336497987829809
2019	5.767840199882293