Year	% of total merchandise imports
1960	0.08646984405130871
1961	0.10665704661932453
1962	0.1390248924627328
1963	0.21565003080714723
1964	0.11875166807109508
1965	0.16488537061082126
1966	0.39046670654656657
1967	0.30968491212069654
1968	0.3218738875499819
1969	0.3566606771543356
1970	0.22500899207779915
1971	0.22082680642941835
1972	0.17167955891326658
1973	0.3145664810252033
1974	0.2761901191603189
1975	0.192296100560588
1976	0.2040966203296025
1977	0.2384659212029735
1978	0.24257841645467737
1979	0.6814624581908731
1980	0.8342295246269745
1981	1.3459492312756731
1982	1.0699988201503503
1983	1.7910604188254475
1984	1.5035996715712987
1985	1.648869248217457
1986	1.4931404741003635
1987	1.3059869488436997
1988	1.0094439653726335
1989	1.0537466823288997
1990	1.3043733845590355
1991	1.0162624062466632
1992	0.9385207349154444
1993	1.4832816525318016
1994	1.766715356030461
1995	2.3480782586417686
1996	2.5288483480186366
1997	2.959074356858172
1998	3.1205134308894413
1999	3.0725981918366814
2000	3.934356846606841
2001	4.795014813586766
2002	5.686563942385707
2003	7.318045946556241
2004	8.747641637505302
2005	9.941938538428877
2006	11.776990524444447
2007	13.120776112379879
2008	13.666614975367791
2009	15.37448614954534
2010	17.079671073919663
2011	17.154605980869608
2012	17.746057225420888
2013	18.58138926768629
2014	19.53346950857201
2015	21.611227597380203
2016	22.03947056871283
2017	21.95895245601941
2018	22.42893533182445
2019	23.452052951056437
2020	24.732750988244163