user: Question: How many times is the rank by average 4?
Columns: ['Rank by average', 'Place', 'Couple', 'Total points', 'Number of dances', 'Average']
Types: ['real', 'real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 2.0, 'Laura and Colin', '348.0', 13.0, '26.8']
SQL:

assistant: SELECT COUNT("Place") FROM "Table" WHERE "Rank by average" = 4.0;