In 2008, extreme waves and high tides caused widespread flooding in the capital city of Majuro and other urban centres, 3 feet (0.91 m) above sea level. On Christmas morning in 2008, the government declared a state of emergency. In 2013, heavy waves once again breached the city walls of Majuro.
In what year did waves overcome the walls of the capital city?
{'text': '2013', 'answer_start': 232}