What is the highest numbered nightly rank for any episode?
CREATE TABLE table_22892217_4 (
    nightly_rank INTEGER
)
SELECT MAX(nightly_rank) FROM table_22892217_4
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 highest numbered nightly rank for any episode? ### Input: CREATE TABLE table_22892217_4 (
    nightly_rank INTEGER
) ### Response: SELECT MAX(nightly_rank) FROM table_22892217_4