What is the sum of all mintage created by Pierre Leduc?
CREATE TABLE table_name_61 (mintage INTEGER, artist VARCHAR)
SELECT SUM(mintage) FROM table_name_61 WHERE artist = "pierre leduc"
### Context: CREATE TABLE table_name_61 (mintage INTEGER, artist VARCHAR) ### Question: What is the sum of all mintage created by Pierre Leduc? ### Answer: SELECT SUM(mintage) FROM table_name_61 WHERE artist = "pierre leduc"