Year	% of merchandise imports
1966	64.55697222329898
1968	64.58090594415829
1969	68.33213719438149
1970	67.27386058334163
1971	65.24989039621687
1972	66.09411861724972
1973	67.34039694258146
1974	61.268367364544254
1975	66.50031436645283
1976	71.76201132229623
1977	70.63382871731878
1997	63.6179502914783
1998	67.31127549492402
1999	66.43414160519009
2000	55.08110882677153
2001	58.04545060280629
2002	60.22389163441519
2003	65.95413179097646
2004	64.61968977112464
2005	62.08205463977252
2006	51.97541043541555
2007	58.751507066275856
2008	56.58649280891505
2009	68.49980861513595
2010	66.17990590290309
2011	58.71507488381075
2013	60.06161840239509
2014	62.34353570204029
2015	64.05532579045429
2016	65.50688020098268
2017	63.4267384473356