user: Question: What is every value for %yes when type is Ref?
Columns: ['meas. num.', 'passed', 'YES votes', 'NO votes', '% YES', 'Const. Amd.?', 'type', 'description']
Types: ['real', 'text', 'real', 'real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'YES', 579022.0, 92187.0, '86.27%', 'Yes', 'LEG', "Fixing Commencement of Legislators' Term"]
SQL:

assistant: SELECT "% YES" FROM "Table" WHERE "type" = 'Ref';