user: Question: How many Cowboy coins were minted?
Columns: ['Year', 'Theme', 'Mintage', 'Issue Price', 'Finish']
Types: ['real', 'text', 'real', 'text', 'text']
Sample row: [2004.0, 'Moose', 25000.0, '$69.95', 'Proof']
SQL:

assistant: SELECT SUM("Mintage") FROM "Table" WHERE "Theme" = 'Cowboy';