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_9 (took_office INTEGER, deputy_prime_minister VARCHAR)
### Question:
What year did deputy prime minister Mariano Rajoy Brey take office?
### Answer:
SELECT SUM(took_office) FROM table_name_9 WHERE deputy_prime_minister = "mariano rajoy brey"