Year	% of total merchandise exports
1975	0.18682445114846952
1976	0.1874430409161381
1977	0.3297165611638897
1978	0.2328894947495357
1979	0.1929954680583031
1980	0.4915767891132637
1981	0.5213640940912572
1982	0.18864815515820882
1983	0.40460241725336604
1984	0.3441275437036886
1985	0.17572840541588247
1986	0.36852859399239174
1987	0.1480396180499197
1988	0.17531829752651412
1989	0.2900012045323076
1990	0.30953934883700096
1991	0.4340910794514036
1992	0.7849467617021574
1993	1.3278146079185007
1994	0.535617070654588
1995	0.3319180869569926
1996	0.5532824067279533
1997	0.3758070863428284
1998	0.3122762570129297
1999	0.6891757458517441
2000	0.5016642752229327
2001	0.7059539511555509
2002	0.4804756984398916
2003	0.3736969257580704
2004	0.3801797715972475
2005	0.4225342543083112
2006	0.42582744733804645
2007	0.4854807088885249
2008	0.3672074537175058
2009	0.6202647149134031
2010	0.6857548473939583
2011	0.5198107554797314
2012	0.58397424997304
2013	0.7325633983963479
2014	0.6510387113046007
2015	0.8136064557763003
2016	0.6578256995245735
2017	0.6331569584065811
2018	0.553069444549835
2019	0.6460863365779553
2020	0.6735603717271885