user: Question: How many purses were there for the  Mar 16?
Columns: ['Date', 'Tournament', 'Location', 'Purse( $ )', 'Winner', 'Score', '1st Prize( $ )']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['Jan 11', 'MONY Senior Tournament of Champions', 'California', 100000.0, 'Miller Barber (18)', '282 (-6)', 30000.0]
SQL:

assistant: SELECT COUNT("Purse( $ )") FROM "Table" WHERE "Date" = 'Mar 16';