Year	% of total merchandise imports
1963	0.16273393002441008
1966	0.2807411566535654
1967	0.15847860538827258
1968	0.18885741265344666
1969	0.23860878391375706
1970	0.15789606649319152
1971	0.6114940294283288
1972	0.01901181410194617
1973	0.05536782250658043
1974	0.31991372613328256
1975	0.0364973506962627
1976	0.10021238266312782
1977	0.12345473538490759
1978	0.07300580565616373
1979	0.2748597085142123
1980	0.13829725751234917
1981	0.04384241546892772
1982	0.07993184522776657
1983	0.07638446849140675
1984	0.14470175309977
1985	0.05553063211913646
1986	0.19918526238727033
1987	0.07779004056349748
1988	0.32216156376604543
1989	0.1536472825899585
1990	0.11366950439829565
1991	0.14982101543432716
1992	0.1778625800937319
1993	0.34897144997889346
1994	0.9102494922554673
1995	1.9591708533407308
1996	0.91404254622442
1997	2.076319261611119
1998	2.5058937743337175
1999	2.7082633081556056
2000	4.572935709753341
2001	3.7178394635952676
2002	2.6500736343431477
2003	2.5678998950376943
2004	4.1817731216019505
2005	5.598699435249177
2006	6.089927229764839
2007	7.8128527784051105
2008	7.821962702403251
2009	7.913036525126074
2010	8.479992730303291
2011	9.282890485811597
2012	9.433421266065599
2013	11.186346384572591
2014	11.792772212191029
2015	14.471015597424742
2016	16.122419232021407
2017	15.373939977455784
2018	15.3811119790844
2019	15.216515473348153
2020	17.43251904644555