Year	% of total merchandise imports
1960	1.55915360233016
1961	1.08286684408553
1962	0.945387792565397
1963	0.638743455497382
1964	1.15625247485547
1965	0.984170681348933
1966	1.23401391070227
1967	0.859618248273995
1968	0.425904317386231
1969	0.977217532092055
1970	1.09306364286444
1971	0.13385553517426
1972	0.0422190323397788
1973	1.34126554894538
1974	0.867814163110706
1975	0.206481118069657
1976	0.161835068955812
1977	0.0343340705060236
1978	0.928768673996192
1979	1.03667130141975
1980	1.00885286681679
1981	1.6803943966813
1982	0.652360515021459
1983	0.362945039751123
1984	0.3996003996004
1985	1.0815991237678
1986	0.956123117223314
1987	0.658526403673555
1988	0.49255782568052
1989	0.564123014480858
1990	0.264069593843794
1991	0.355603903258212
1992	0.342075690789439
1993	0.306969993239563
1994	1.47211449307863
1995	1.23126931886761
1996	0.929277485051533
1997	1.13724607152591
1998	1.53713316779634
1999	0.181639294634073
2000	2.42902543401556
2001	3.70557446223497
2002	2.73917631759001
2003	3.66966021614726
2004	4.3882186151147
2005	5.50266001094286
2006	6.68308340949916
2007	8.92937897668773
2008	8.80964019632158
2009	12.3743214467013
2010	11.7042465401525
2011	15.4242375056126
2012	16.280651552445
2013	15.8032005273903
2014	15.481548747051
2015	17.4292577319192
2016	16.6603901485792
2017	17.4873258806272