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_19 (year INTEGER, actor VARCHAR)
### Question:
What is the average year that Idris Elba was nominated for or won an award?
### Answer:
SELECT AVG(year) FROM table_name_19 WHERE actor = "idris elba"