user: Question: How many coins by Suzanne Duranceau were minted?
Columns: ['Year', 'Theme', 'Artist', 'Mintage', 'Issue Price']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2005.0, "40th Anniversary, Canada's Flag", 'William Woodruff', 'N/A', '$84.95']
SQL:

assistant: SELECT SUM("Mintage") FROM "Table" WHERE "Artist" = 'Suzanne Duranceau';