Year	% of total merchandise imports
1964	37.93103448275862
1965	29.7029702970297
1966	21.5
1967	21.287128712871286
1968	24.669603524229075
1969	24.786324786324787
1970	21.10726643598616
1971	14.067278287461772
1972	15.160349854227405
1973	19.26052298732241
1974	15.284178187403993
1975	14.582768473522847
1976	14.917400618900261
1977	14.334939588279063
1978	13.54439486078482
1979	12.901173113832067
1980	14.110202267902109
1981	17.612505366691387
1982	27.555833462849378
1983	24.117174514209985
1984	25.510634083091716
1985	14.939155140988527
1986	12.414503075791188
1987	18.808366195249935
1988	17.42264762452862
1989	18.146845790881496
1990	21.065408892279947
1991	29.039736180494337
1992	20.303124891617244
1993	22.600337079213535
1994	30.86334576161786
1995	31.198332790252337
1996	31.340377263803138
1997	26.353004957039726
1998	32.22909175593968
1999	27.56679812973484
2000	24.585595974998924
2001	19.737053644014217
2002	23.844076730827997
2003	25.720852221126535
2004	27.701161490797777
2005	39.78535741016924
2006	53.22060948287118
2007	45.9471627883408
2008	44.108178484015326
2009	34.19570374218963
2010	33.34200015690214
2011	32.955896703139096
2012	28.50327744964247
2013	25.757852588600276
2014	26.891633606923076
2015	29.54718739918579
2016	30.559707576373064
2017	30.810969339514905
2018	23.55935329432023
2019	26.98750074634807
2020	37.612472251403055