Year	% of total exports
1995	8.35595522362575
1996	8.503411538491967
1997	9.643197394014848
1998	11.116741173590082
1999	9.466838169241669
2000	7.313186725368102
2001	8.27443282945833
2002	8.945734108162922
2003	10.035170558200225
2004	9.118547898825033
2005	7.808177252273614
2006	7.695253336389013
2007	7.220949967884613
2008	5.968423236977786
2009	7.278837100361662
2010	6.337068527347676
2011	5.759157985950602
2012	6.340361870675784
2013	6.35395654380838
2014	6.951913765798284
2015	8.219000281150823
2016	8.98092976352626
2017	8.955847266356258
2018	8.503837490093927
2019	8.73468257811927