Year	% of merchandise exports
1962	1.3518644668005726
1963	1.9738666162190222
1964	1.337787074976495
1965	1.0480273525258539
1966	1.186894015115359
1967	1.317786412604944
1968	1.171127291274525
1969	1.1327991892484524
1970	1.6530421373322786
1971	1.4893544591105599
1972	2.299993610265082
1973	1.0859183417654141
1974	0.7819984313630979
1975	0.9412944924171853
1976	0.9202275038238955
1977	0.9952792938123721
1978	1.0805483372407654
1979	0.6632988977719
1980	0.38059521874592633
1981	0.4523037414173026
1982	0.5856152495833359
1983	0.6518454299974338
1984	0.9543454751777157
1985	3.226877710200441
1986	2.8510036024503966
1987	1.0547170888428066
1990	1.9176819935786935
1991	2.172114701853558
1992	2.5616078525609325
1993	2.738186842762569
1994	2.7692391417785376
1995	2.806090422962635
1996	2.504806506418945
1997	2.7897860873685087
1998	3.7963580291808894
1999	2.6424632607852425
2000	1.4959518357255734
2001	1.715182358840922
2002	1.6304262578784452
2003	1.0572634644911494
2004	0.8306656533914168
2005	0.4865525531464086
2006	0.2051259287470302
2008	0.17688401335688594
2009	0.15597513567717866
2010	0.19040579169595018
2011	0.060361065412068586
2012	0
2013	0.0426406748965278