Year	% of merchandise imports
1977	1.8943814569022202
1978	2.297735631134099
1979	2.5784665687561454
1980	2.9010813390709465
1981	3.910328706946854
1982	2.222778853239115
1983	3.436992102258002
1984	3.4693417422482984
1985	3.213646746725221
1986	3.263009796679514
1987	2.7752985607929097
1989	3.0456098600131947
1990	3.1265612322018246
1991	2.709229432516842
1992	2.4631833669216316
1993	2.393262987587616
1995	2.2771363106047984
1996	2.7172680554577755
1997	3.082042809060682
1998	2.224398660021957
2000	2.37527192847551
2001	2.4156249189575876
2002	1.9247989829054841
2003	1.9273701602929099
2004	2.0847706896432605
2005	2.9405683998902146
2006	3.1644501304716015
2007	3.358709164490202
2008	3.0021426549753127
2009	2.3476742507948694
2010	1.9978469430833885
2011	1.944246863900313
2012	2.153900363485399
2013	2.213041834533152
2015	2.6827021156000486
