Rome, November 26 - Italian President Giorgio Napolitano said on Monday that he has "given his all" during his seven-year mandate as the country's president. "The end of a term is a cornerstone of a democratic system," Napolitano said. "In the end, we are all replaceable. This gives me serenity and is a sincere vote of confidence in the institutions of the country". President Napolitano's term ends May 2013.