Mexican President Enrique Peña Nieto was continuing to recover from a tough week that saw both the dazzling escape of drug lord Joaquin “El Chapo” Guzman and a disappointing show for its historic oilfield auction. Still, there were some hopeful statistics for the president to tout: New government figures released Monday showed that homicides fell again last year from the year before, making for a continuous downward streak since Peña Nieto first …