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_29 (date INTEGER, record VARCHAR, game VARCHAR)
### Question:
What was the average date with a record of 30-31-9 in a game over 70?
### Answer:
SELECT AVG(date) FROM table_name_29 WHERE record = "30-31-9" AND game > 70