Year	% of total exports
1995	55.38079757256982
1996	53.699138860726194
1997	48.21509758348233
1998	47.736387528837625
1999	53.4804593860931
2004	65.57860427944335
2005	52.08658637528547
2006	59.30498454770093
2007	56.32781472188205
2008	61.954620984098
2009	66.35753837633564
2010	60.56858566941463
2011	64.73200379280038
2012	66.70595318444529
2013	59.61550855891124
2014	65.37574255670421
2015	61.53462548511275
2016	59.89936807492645
2017	59.98735527441206
2018	63.87741753079498
2019	61.19693516059221
2020	19.79074117952076