user: Question: Name the total number of competition finish with total of 90 and rank by average more than 5
Columns: ['Rank by average', 'Competition finish', 'Couple', 'Total', 'Number of dances', 'Average']
Types: ['real', 'real', 'text', 'real', 'real', 'real']
Sample row: [1.0, 1.0, 'Alesha & Matthew', 584.0, 16.0, 36.5]
SQL:

assistant: SELECT COUNT("Competition finish") FROM "Table" WHERE "Total" = 90.0 AND "Rank by average" > 5.0;