user: Question: What is the average when the rank by average is more than 12?
Columns: ['Rank by average', 'Place', 'Couple', 'Total', 'Number of dances', 'Average']
Types: ['real', 'real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 2.0, 'Mel & Maksim', 414.0, 15.0, 27.6]
SQL:

assistant: SELECT "Average" FROM "Table" WHERE "Rank by average" > 12.0;