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 (year INTEGER, director VARCHAR)
### Question:
What is average year for ayan mukerji?
### Answer:
SELECT AVG(year) FROM table_name_29 WHERE director = "ayan mukerji"