Year	% of total merchandise imports
1977	77.53427366200897
1978	81.4073685083331
1979	82.73576963757637
1980	84.41624990580311
1981	83.34024829340964
1982	85.6204221025205
1983	85.91020536720119
1984	81.36388282731053
1985	83.94420160032536
1986	90.04309464490711
1987	89.4420425359005
1988	88.85032100403303
1989	90.10172361188788
1990	90.38724635465088
1991	89.84019056428558
1992	89.68909283560538
1993	88.88996279873777
1994	89.71478316958753
1995	88.60322535689484
1996	88.39287148291587
1997	89.7314245757637
1998	90.67326360023536
1999	90.53558458925657
2000	89.54151772113775
2001	90.65380268912881
2002	90.76043611710467
2003	88.4756731489453
2004	89.3116251262015
2005	87.35672890574692
2006	85.59280180789828
2007	84.59398379196675
2008	82.99012315740033
2009	83.7499684919866
2010	82.76371489082392
2011	85.8791191150175
2012	81.57731681859417
2013	79.29062661319315
2014	75.76352704148309
2015	78.65968717561758
2016	81.15619057228535
2017	80.96636023563693
2018	81.32175882348767
2019	81.3503737751122
2020	80.52015858936686