user: Question: What was the maximum rank for the vote percentage of 5.6%
Columns: ['Rank', 'Couple', 'Judges', 'Public', 'Total', 'Vote percentage', 'Result']
Types: ['real', 'text', 'real', 'real', 'real', 'text', 'text']
Sample row: [1.0, 'Hayley and Daniel', 6.0, 6.0, 12.0, '44.8%', 'Safe']
SQL:

assistant: SELECT MAX("Rank") FROM "Table" WHERE "Vote percentage" = '5.6%';