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_261906_2 (enrollment INTEGER, joined_mac VARCHAR)
### Question:
What is the highest enrollment schools that joined the mac in 1997?
### Answer:
SELECT MAX(enrollment) FROM table_261906_2 WHERE joined_mac = 1997