user: Question: what is the winning % for the years 2006-11?
Columns: ['Coach', 'Years', 'Seasons', 'Record', 'Winning %']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Frank Haith', '2011–Present', 2.0, '52-14', 0.788]
SQL:

assistant: SELECT "Winning %" FROM "Table" WHERE "Years" = '2006-11';