Year	% of merchandise imports
1966	23.87715385853827
1968	23.298124336784728
1969	18.974041539874214
1970	19.176379561261136
1971	21.880429680005687
1972	21.285000940152806
1973	22.480413648375436
1974	27.773767092520117
1975	23.997579899561806
1976	18.75396202994507
1977	17.913183992312934
1997	23.08679110613912
1998	20.221101470830103
1999	20.449798114990745
2000	17.13792554879076
2001	16.66791636897906
2002	16.197515393281538
2003	17.73569735518282
2004	16.598170700557166
2005	14.985742798272568
2006	13.337997260086182
2007	17.317495458483656
2008	14.13533109766047
2009	15.43601120166087
2010	15.76167755031202
2011	18.384806793440653
2013	18.07412429155571
2014	16.87977988871691
2015	18.564107242456586
2016	18.921054715795247
2017	19.752589976377507