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_78 (year INTEGER, floors INTEGER)
### Question:
When was the average year that the number of floors was greater than 75?
### Answer:
SELECT AVG(year) FROM table_name_78 WHERE floors > 75