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SANTANDER, SPAIN - MARCH 18: Banco Santander Chairman Ana Patricia Botin speaks during the annual shareholders meeting at the Palacio Exposiciones on March 18, 2016 in Santander, Spain. Santander, the largest bank in the Eurozone, will aim to increase its shareholder dividend by 5% in 2016. (Photo by Juan Manuel Serrano Arce/Getty Images)

SANTANDER, SPAIN - MARCH 18:  Banco Santander Chairman Ana Patricia Botin speaks during the annual shareholders meeting at the Palacio Exposiciones on March 18, 2016 in Santander, Spain. Santander, the largest bank in the Eurozone, will aim to increase its shareholder dividend by 5% in 2016. (Photo by Juan Manuel Serrano Arce/Getty Images)