Year	% of total merchandise imports
1960	2.5020177562550443
1961	2.775574940523394
1962	6.508422664624809
1963	5.937726285300506
1964	6.298200514138817
1965	5.7324840764331215
1966	6.525911708253358
1967	5.685785536159601
1968	6.7811158798283255
1969	6.081949908837924
1970	5.010103739919293
1971	6.79796639482355
1972	6.557847994107778
1973	4.6386013124541
1974	2.336517644337944
1975	6.708320032360961
1977	9.503163519951602
1981	4.809810598971726
1982	13.342100613226812
1983	2.1181339612175325
1984	5.691576324456059
1985	0.5277268758866676
1986	0.37365692077022133
1987	0.07029681871581578
1988	0.018265251738424394
1989	0.02561238216942801
1990	0.014940559414840189
1996	0.11213225544940031
2007	0.012448984533735701
2009	0.2399271575927941
2010	0.5884118384182682
2011	0.3504423111917484
2012	0.1611761366316155
2013	0.19494727687101537
2014	0.27172456679352985
2015	0.1829704329585466
2016	0.39013938986196345
2017	0.5809620135232965
2018	0.3000522193061066
2019	0.23632704490440976
2020	0.1889673649884697