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_88 (average INTEGER, rank_by_average INTEGER)
### Question:
What is the average when the rank by average is more than 12?
### Answer:
SELECT SUM(average) FROM table_name_88 WHERE rank_by_average > 12