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_261941_1 (enrollment VARCHAR, joined VARCHAR)
### Question:
How many different items appear in the enrollment column that joined in 1931, 1949 1?
### Answer:
SELECT COUNT(enrollment) FROM table_261941_1 WHERE joined = "1931, 1949 1"