user: Question: Name the minimum 11-12 enrollment for Washington school
Columns: ['School', 'Est. Denotes original date of establishment of the school, changes in name and/or location noted in corresponding ootnote', 'Location Denotes location of school by Seattle neighborhood, does not necessary correspond with attendance area', 'Nickname', '11-12 Enrollment']
Types: ['text', 'real', 'text', 'text', 'real']
Sample row: ['Eckstein', 1950.0, 'Bryant / Wedgwood', 'Eagles', 1278.0]
SQL:

assistant: SELECT MIN("11-12 Enrollment") FROM "Table" WHERE "School" = 'Washington';