Year	% of total exports
1995	11.678711200381008
1996	13.019641349567198
1997	12.466670737416296
1998	10.800985887346194
1999	10.137065966129565
2000	9.539906103286384
2001	9.415007112375534
2002	9.043308971873111
2003	9.123224263812704
2004	8.86142275921588
2005	8.589335437584465
2006	7.940358881417499
2007	7.461316216179636
2008	7.986044358295116
2009	9.730254884049689
2010	9.0806483678938
2011	8.413691248928735
2012	8.234238585835632
2013	8.265640712868255
2014	8.046064177061682
2015	7.820793413124449
2016	7.821521454770252
2017	7.549065043374487
2018	7.351255794091383
2019	7.366874242238127
2020	3.3878689259332115