Year	% of merchandise imports
1978	1.1641693635835575
1979	1.284929475291782
1980	1.6959984621960122
1981	1.3723361691018745
1982	1.4418059579951035
1983	1.927175636037942
1992	3.734549501543943
1993	4.7615227562372855
1999	2.113566317103083
2000	2.3140152761916797
2001	2.268734632006273
2002	2.1023063480294057
2003	2.2611174431057943
2004	3.1449315951323586
2005	3.293508152842979
2006	3.6784121517393595
2007	3.5182772624272745
2008	4.349046727132947
2009	2.5156772600018447
2010	3.14566663233853
2011	3.8557154797080533
2012	3.9118032545444286
2013	3.4869857869654974
2014	3.4467488615924338
2015	2.9594225261727503
2016	2.765465471940488
2017	3.261737140385317
2018	3.7057183579385877
2019	3.4201664477483136
2020	3.361752018519569
2021	4.024670193459629
