Year	% of total merchandise exports
1960	1.2808921036769136
1961	1.2442396313364055
1962	1.116471399035148
1963	0.9242368965097897
1964	0.7879185817465528
1965	0.708201741793473
1966	0.7068200616587713
1967	0.5271378367825068
1968	0.46691720760733396
1969	0.3725146986221445
1970	0.37096130833665736
1971	0.45298510103691125
1972	0.41183077499064025
1973	0.43804262036306235
1974	0.7211699350779733
1975	0.6013019927446206
1976	0.5269629369401019
1977	0.6791717215707013
1978	1.0279116204366887
1979	1.00735919042317
1980	0.9267277395439285
1981	0.9357646121658556
1982	0.9540379320893239
1983	1.0373443983402488
1984	1.0733269608586615
1985	1.0638157067508454
1986	1.244791065003564
1987	1.1913368554391819
1988	0.9661594979282974
1989	0.9625987007354978
1990	0.9841525487556891
1991	0.8332850058206452
1992	0.8756116820321574
1993	0.9076178524884548
1994	0.9360167369521489
1995	1.0571781656769574
1996	0.9676135376011188
1997	0.9239190011356258
1998	0.9463693916705336
1999	1.1951080279087765
2000	1.164574217552534
2001	1.1226303695715076
2002	1.1840677362672472
2003	1.296006926441707
2004	1.2340180978556259
2005	1.3712137695552002
2006	1.3528126418060262
2007	1.6700215261037186
2008	2.2084434954007883
2009	2.4604084220631326
2010	2.812670085329959
2011	3.1882536379945017
2012	2.6452921635703506
2013	2.8456926038021786
2014	3.1100974533916452
2015	3.5066580584246902
2016	3.8404296666753157
2017	4.340061283867415
2018	3.736783657742059
2019	3.421396162610791
2020	2.8852991150074265