user: Question: What is the lowest disposable USD 2011?
Columns: ['Rank', 'Country', 'Disposable USD 2011', 'Disposable USD growth', 'Compulsory deduction', 'Gross USD 2011']
Types: ['real', 'text', 'real', 'real', 'text', 'real']
Sample row: [1.0, 'United States', 42050.0, 242.0, '22.8%', 54450.0]
SQL:

assistant: SELECT MIN("Disposable USD 2011") FROM "Table";