Year	% of total merchandise imports
1970	21.59090909090909
1971	23.404255319148938
1972	21.025641025641022
1973	35.77235772357724
1974	36.17886178861789
1975	30.693069306930692
1976	28.191489361702125
1977	25.165562913907287
1978	26.444833625218916
1979	25.448028673835125
1980	21.25256673511294
1981	25.349087003222344
1982	30.144032921810698
1983	22.94887039239001
1984	27.610208816705335
1985	22.505307855626327
1986	19.769478835055786
1987	22.046413502109704
1988	16.715580385414704
1989	19.25599398231795
1990	21.04311124042893
1991	24.83273006299551
1992	22.912153327570408
1993	34.48806150481324
1994	35.49098580337379
1995	37.050851226169456
1996	28.835659122520376
1997	25.44884248271273
1998	30.43758682344669
1999	20.227096107116413
2000	21.733119477854153
2001	13.926162637236303
2002	19.05123977754736
2003	19.63343393287899
2004	16.90066924214938
2005	15.701449032862886
2006	19.520453906591626
2007	16.32526904622895
2008	15.956426754232512
2009	20.94020658257035
2010	14.057981707483446
2011	11.432120089199165
2012	14.402024934893042
2013	21.696078577872946
2014	22.23793004350495
2015	24.36627184844372
2016	17.74862628953041
2017	20.243352083302387
2018	26.150018795587044
2019	22.222961756849603
2020	23.94945191497227