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_2562113_1 (enrollment INTEGER, joined VARCHAR)
### Question:
What is the enrollment for the institution that joined in 1987? 
### Answer:
SELECT MIN(enrollment) FROM table_2562113_1 WHERE joined = 1987