user: Question: Which 2011 has an Airport of Bole International Airport?
Columns: ['Country', 'Airport', 'City', '2011', 'Change (11/10)']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['South Africa', 'OR Tambo International Airport', 'Johannesburg', 18922346.0, '0 2.9%']
SQL:

assistant: SELECT "2011" FROM "Table" WHERE "Airport" = 'Bole International Airport';