user: Question: What is the highest rank of the 2009 Xbox?
Columns: ['Rank', '2008', '2009', '2010', '2011', '2012', '2013']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Aston Martin', 'iPhone', 'Aston Martin', 'Aston Martin', 'Apple', 'Apple']
SQL:

assistant: SELECT MAX("Rank") FROM "Table" WHERE "2009" = 'Xbox';