Year	% of total merchandise imports
1972	0.04245137388082742
1973	0.09759906304899472
1974	0.18591574842425068
1975	0.032694308218160203
1981	0.0189000189000189
1992	0.6310044207465625
1993	0.4853022913924555
1994	0.7512062811951506
1995	1.1458063904188414
1996	0.9847653043593299
1999	0.007902301919330754
2000	0.5135914993038287
2001	0.7245548553808673
2002	0.8382307889025566
2003	0.2969976516306017
2004	0.35406149589700653
2005	2.319195239327539
2006	0.9110276976653955
2007	0.56328995631643
2008	0.31177012656068975
2009	0.2910894770743152
2010	0.36664353980436004
2011	0.2575035700038551
2012	0.3618186967654359
2013	4.040025779623516
2014	0.5642435820466738
2015	0.24607586587495367
2016	0.18419038798758225
2017	0.10916155655852151
2018	0.25565341997856156
2019	0.15325314581159344
2020	0.2199612393524799