Year	% of total merchandise exports
1960	0.22687582792563715
1961	0.24113018867671773
1962	0.2713936309671647
1963	0.27242530841021506
1964	0.24790403936958005
1965	0.4164576186630125
1966	0.4034354306589944
1967	0.35253967924522706
1968	0.5219845454521431
1969	0.35297349510207465
1970	0.45012590317206186
1971	0.5356748766503298
1972	0.42393532973744147
1973	0.7866248035457437
1974	0.8845054407341284
1975	0.7846169929879496
1976	0.7920271288942458
1977	1.037135911228768
1978	1.419510208135682
1979	1.3629178805772837
1980	1.6213599039193276
1981	2.34304901792471
1982	1.886020563817277
1983	1.6619898120383059
1984	2.0585877034120768
1985	2.5272327906402894
1986	1.1584245364456365
1987	1.1620352105784348
1988	1.0634241243166451
1989	0.890018409492011
1990	0.9036407885434553
1991	0.7767606324307862
1992	1.0687219017287646
1993	0.71683351677084
1994	0.8094873379941374
1995	0.7292256825400479
1996	0.7185718339909388
1997	0.629330045856059
1998	0.5361692453326324
1999	0.5043735914468618
2000	0.43893875672960736
2001	0.6408044964040664
2002	0.7320042565510597
2003	0.7061587610555176
2004	0.8565219199109998
2005	1.1594494841278098
2006	1.2958968686411445
2007	1.3674488946706251
2008	1.3704540952360078
2009	1.347218953490765
2010	1.0414521454901582
2011	1.153972007970769
2012	1.1545665241310843
2013	0.9680502113161811
2014	0.8546825418757487
2015	0.8566694511717781
2016	0.845591860357784
2017	0.8038574815802354
2018	0.6664425282228116
2019	0.6795780909811369
2020	0.7002785376303295