What is the total enrollment of the aa IHSAA class?
CREATE TABLE table_name_61 (
    enrollment VARCHAR,
    ihsaa_class VARCHAR
)
SELECT COUNT(enrollment) FROM table_name_61 WHERE ihsaa_class = "aa"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the total enrollment of the aa IHSAA class? ### Input: CREATE TABLE table_name_61 (
    enrollment VARCHAR,
    ihsaa_class VARCHAR
) ### Response: SELECT COUNT(enrollment) FROM table_name_61 WHERE ihsaa_class = "aa"