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_33 (goals_against_average INTEGER, games_played INTEGER)
### Question:
What is the average goals against average for those playing more than 78 games?
### Answer:
SELECT AVG(goals_against_average) FROM table_name_33 WHERE games_played > 78