user: Question: What is the highest number of Brisbane viewers?
Columns: ['WEEK', 'Sydney', 'Melbourne', 'Brisbane', 'Adelaide', 'Perth', 'TOTAL', 'WEEKLY RANK']
Types: ['real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 352000.0, 303000.0, 170000.0, 116000.0, 115000.0, 1056000.0, 7.0]
SQL:

assistant: SELECT MAX("Brisbane") FROM "Table";