Crew members look out from the container ship, the MV Maersk Mc-Kinney Moller, as it berths during its maiden port of call at a PSA International port terminal in Singapore September 27, 2013. REUTERS/Edgar Su/File Photo

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, September 21, 2016. REUTERS/Staff/Remote

Italy's Health Minister Beatrice Lorenzin gestures during a news conference at the end of a cabinet meeting in Rome, Italy, February 28, 2014. REUTERS/Remo Casilli/File

European Central Bank (ECB) President Mario Draghi attends a news conference at the ECB headquarters in Frankfurt, Germany September 8, 2016. REUTERS/Ralph Orlowski

Floor governor Peter Giacchi (C) gives a price for Noble Midstream Partners LP, during the company's IPO on the floor of the New York Stock Exchange (NYSE) in New York City, U.S., September 15, 2016. REUTERS/Brendan McDermid

Ahmad Khan Rahami, 28, is shown in Union County, New Jersey, U.S. Prosecutor’s Office photo released on September 19, 2016. Courtesy Union County Prosecutor’s Office/Handout via REUTERS

A Commerzbank logo is pictured after the bank's annual news conference in Frankfurt, Germany, February 12, 2016. REUTERS/Ralph Orlowski/File Photo

New York Mayor Bill de Blasio speaks during a news conference at Rikers Island jail in New York City, U.S. September 1, 2016. REUTERS/Brendan McDermid -