user: Question: Name the least purse for 2011
Columns: ['Year', 'Dates', 'Champion', 'Country', 'Score', 'Margin of victory', 'Tournament Location', 'Purse ( US$ )', 'Winners share']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: [2013.0, 'Feb 28 – Mar 3', 'Stacy Lewis', 'United States', '273 (−15)', '1 stroke', 'Sentosa Golf Club', 1400000.0, 210000.0]
SQL:

assistant: SELECT MIN("Purse ( US$ )") FROM "Table" WHERE "Year" = 2011.0;