Year % of merchandise imports 1970 31.125019488123897 1971 37.59539481990025 1972 34.14681415563627 1975 36.10427862696281 1976 27.959669973364637 2003 62.41601838630597 2004 39.182241279612285 2005 50.69184206257017 2014 40.55583437457307 2015 50.45253716300788 2016 46.11303222444423 2017 46.0194884082423 2018 41.71035172192142