Year	% of total merchandise exports
1960	0.19694731659281145
1961	0.1797752808988764
1962	0.4832863471606927
1963	0.41350792556857335
1964	0.550696469063816
1965	0.5189255189255189
1966	0.6403940886699507
1967	0.40420371867421184
1968	0.3205813207950417
1969	0.5687460503746502
1970	0.8867561187725184
1971	1.3642811868038995
1972	1.013071144701477
1973	0.8170620155571909
1974	1.5058118622103307
1975	2.462491277041172
1976	1.7377270091978876
1977	2.2878665707789425
1978	1.9690043284913088
1979	1.7489391195013926
1980	1.870334534046687
1981	2.4914854227611256
1982	1.8872582125075101
1983	1.5873447495258362
1984	0.9856165606841583
1985	1.1383265087813133
1986	0.6103765788118451
1987	0.7556690488000539
1988	0.9001994651951651
1989	1.08609210853205
1990	1.1268717541838393
1991	1.0694281210564591
1992	1.0720047068227727
1993	0.912952971748146
1994	0.812302682882824
1995	0.7032449277659536
1996	0.9155577872625325
1997	0.9778328788396188
1998	1.2050181424633937
1999	1.195402729006392
2000	1.4232424552307
2001	1.1909180898543736
2002	1.122203769355652
2003	1.1358580570566184
2004	1.0790383900952956
2005	1.8389568912933962
2006	0.8838426895789703
2007	1.3410599095630238
2008	1.8914295194568238
2009	1.9212855116712602
2010	1.4735675018705794
2011	1.2211340528751085
2012	1.041377560384436
2013	0.8779349318481054
2014	0.910529617421848
2015	1.457479270537494
2016	1.1276400626587306
2017	1.2633642994796155
2018	1.3418982451131352
2019	1.4957382345332713
2020	1.3364377193619572