Year	% of total merchandise imports
1963	0.08438818565400844
1965	0.09354536950420954
1966	0.11737089201877934
1968	0.06455777921239508
1969	0.19929140832595219
1970	0.43168168168168175
1972	0.5087398904252544
1973	0.549942447883361
1974	1.3619919131730156
1975	0.975557461406518
1976	0.9044388908723074
1977	0.9036498063607558
1978	0.22408963585434172
1979	0.0587026709715292
1980	1.460294472604393
1981	0.33425374218863535
1982	0.16820857863751051
1983	0.1682085786096235
1984	0.16820857862656888
1985	0.16820857863887811
1986	0.16820857863511607
1987	0.16820857863187455
1988	0.168208578655793
1989	0.5763045788136462
1990	0.8815329851720375
1991	1.706427794207322
1992	1.1814275541381296
1993	2.1226582985312885
1994	2.323043544563549
1995	0.3183723208248961
1996	1.0449278614816628
1997	0.6466137765317078
1998	0.8033329522135112
1999	0.43404281089860747
2000	0.8926017942652427
2001	0.8926581958126216
2002	0.8921463342230984
2003	0.888304650212872
2004	0.8890539455991879
2005	0.8915128242200528
2006	0.8927745351063219
2007	0.8927973255318322
2008	0.8927671868452116
2009	0.8927304632872082
2010	0.8926745958951217
2011	0.8925319096839631
2012	0.892314369818196
2013	0.8917983112826926
2014	0.8907936593169538
2015	0.8886251347206503
2016	0.8889533133524798
2017	0.617527466002134
2018	0.767491032353025
2019	0.7285940395376359
2020	2.0751484048935573