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_93 (ends INTEGER, since VARCHAR, name VARCHAR)
### Question:
What is the average Ends with a Since of 2003, and a Name with márquez?
### Answer:
SELECT AVG(ends) FROM table_name_93 WHERE since = 2003 AND name = "márquez"