user: Question: What is the rank of the airport with the BKK/VTBS code?
Columns: ['Rank', 'Airport', 'Code (IATA/ICAO)', 'Total Cargo (Metric Tonnes)', '% Change']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Memphis International Airport', 'MEM/KMEM', 3840491.0, '4.0%']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Code (IATA/ICAO)" = 'BKK/VTBS';