Year	% of total exports
1998	48.73465714255229
1999	42.00560816369902
2000	43.94995950649686
2001	41.68185026973263
2002	63.26210395300428
2003	60.36400311442763
2004	57.97195096280616
2005	58.770375173246535
2006	59.39618103396008
2007	64.6976111075788
2008	68.2547090155713
2009	70.51316719727319
2010	74.35550871116999
2011	71.03793511389851
2012	75.17965163657695
2013	80.31940912735782
2014	74.87605831525288
2015	85.64548558086177
2016	79.40241366372454
2017	76.75136417833347
2018	82.89347809523478
2019	90.66091030830408
2020	50.39752002126248