What's the percentage when the state delegate is 1662?
{'header': ['Candidate', 'State Delegate', 'Percentage', 'Delegates', 'Counties Carries'], 'page_title': 'United States presidential election in Washington (state), 2008', 'section_title': 'Caucuses', 'caption': '96% of precincts reporting', 'rows': [['John McCain', '3228', '25.9%', '16', '11'], ['Mike Huckabee', '2959', '23.52%', '8', '11'], ['Ron Paul', '2740', '21.64%', '5', '9'], ['Mitt Romney', '1903', '15.45%', '0', '4'], ['Uncommitted', '1662', '13.49%', '0', '2']]}