What is the greatest number of bills sponsored in any year?
CREATE TABLE table_22639 (
    "Years covered" text,
    "All bills sponsored" real,
    "All amendments sponsored" real,
    "All bills cosponsored" real,
    "All amendments cosponsored" real,
    "Bills originally cosponsored" real,
    "Amendments originally cosponsored" real
)
SELECT MAX("All bills sponsored") FROM table_22639
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 greatest number of bills sponsored in any year? ### Input: CREATE TABLE table_22639 (
    "Years covered" text,
    "All bills sponsored" real,
    "All amendments sponsored" real,
    "All bills cosponsored" real,
    "All amendments cosponsored" real,
    "Bills originally cosponsored" real,
    "Amendments originally cosponsored" real
) ### Response: SELECT MAX("All bills sponsored") FROM table_22639