user: Question: What is the BBI whent the economy is 5.68?
Columns: ['Player', 'Matches', 'Overs', 'Wickets', 'Average', 'Economy', 'BBI', '4wi']
Types: ['text', 'real', 'text', 'real', 'text', 'text', 'text', 'real']
Sample row: ['Murali Kartik Category:Articles with hCards', 10.0, '69.3', 20.0, '16.05', '4.61', '4/30', 1.0]
SQL:

assistant: SELECT "BBI" FROM "Table" WHERE "Economy" = '5.68';