Banco Santander increased attributable profit during 2018 by 18% to €7,810 million (+32% in constant euros), as strong growth in customer revenues in several markets, including Brazil, Spain, Mexico and the US, combined with improvements in credit quality, more than offset the impact of exchange rate depreciation against the euro in certain currencies, including the Argentine peso.Underlying profit increased by 18% year-on-year in constant euros to €8,064 million.