Year	% of merchandise imports
1970	27.182289070731414
1971	20.987662722488007
1972	26.59517257683987
1973	27.437860784252155
1974	25.76968392882668
1975	18.890821834040015
1976	21.663787879699754
1977	21.66657089543588
1978	21.53623335862059
1979	17.494398021113263
1980	14.486308595746648
1981	14.771754604736506
1982	19.453779251780542
1983	16.69628033266181
1984	21.237861563022726
1985	21.03843246730984
1986	21.585424178118593
1987	18.900842932809873
2002	31.97655497618722
2003	23.743703068718208
2004	22.318612405030503
2005	28.197232988029448
2006	23.368690908333292
2007	20.034927926282712
2008	23.116184932620875
2009	30.107038972612276
2010	26.101796132529266
2011	21.083195475755236
2012	21.42426213772908
2013	20.195854498445602
2014	23.656771369922698
2015	24.146311311113013
2016	24.11958945363339
2017	24.572839228499255
2018	22.19458146665115