Year	% of merchandise imports
1970	56.43401211922969
1971	60.16688250265497
1972	62.423457633356804
1973	58.543369939336344
1974	55.05038864969668
1975	61.14649079377593
1980	52.14925527782833
1981	54.20082303538878
1982	55.82640285281685
1983	59.35803014039731
1984	51.521909551440004
1993	65.42044368198613
2000	58.42430365909747
2006	63.02897583136347
2007	56.03794319710561
2009	62.66603637861326
2010	58.59643694778588
2011	52.29665932444703