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_57 (caps INTEGER, date_of_birth__age_ VARCHAR)
### Question:
What is the total of Caps when player born 13 December 1977?
### Answer:
SELECT SUM(caps) FROM table_name_57 WHERE date_of_birth__age_ = "13 december 1977"