Year	% of merchandise imports
1977	52.720923431180836
1978	50.31819460960199
1979	55.171239586215904
1980	57.8704708797817
1981	61.068351284762066
1982	53.990976447063034
1983	58.37135977066078
1984	51.19824494214969
1985	50.674253862673346
1986	53.2996305479681
1987	54.25099858831971
1989	56.6392551536383
1990	55.85267706966578
1991	63.9936830271083
1992	63.06263452479034
1993	65.96896687223095
1995	69.17408483065395
1996	68.7759751327528
1997	65.75828788512665
1998	69.63330044920944
2000	67.74277382439972
2001	68.91108672870638
2002	56.759998151957134
2003	60.317204445498994
2004	65.52134243288793
2005	65.60152219962568
2006	60.37520500167385
2007	54.304495152936795
2008	63.525498226188304
2009	60.07740861966323
2010	64.17009272137302
2011	63.67056084612651
2012	64.060096485815
2013	65.08376913401186
2015	63.480430687742185