Year	% of merchandise imports
1970	60.99233139879901
1971	62.48455885950804
1972	61.76117308493253
1973	60.88386301836144
1974	56.57160714888494
1975	58.73041401703282
1976	57.46545201035672
1977	55.15602929699176
1978	56.37625994347499
1979	59.1659114526252
1980	56.393210909476004
1981	54.562648192679504
1982	52.14226393239415
1983	54.79911582810138
1984	54.057030510219235
1985	54.721230411217945
1986	59.498100212365294
1987	58.3234072345508
2002	54.73280668533519
2003	54.3330527772245
2004	55.2490636871304
2005	51.02582499723489
2006	50.006772971473005
2007	45.776647127901356
2008	44.21469302504005
2009	48.72691426353424
2010	48.69613527874988
2011	47.86303061946183
2012	46.09493419628947
2013	52.85647650995172
2014	53.202397590249056
2015	54.27456491847957
2016	61.44332547266782
2017	58.980113356405624
2018	58.35418306686867