Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### 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"