What is the average number for a final episode featuring maxine valera?
CREATE TABLE table_54217 (
    "Character" text,
    "Position" text,
    "Actor" text,
    "First Episode" text,
    "Final Episode" text,
    "Duration" text,
    "Final Episode Count" real
)
SELECT AVG("Final Episode Count") FROM table_54217 WHERE "Character" = 'maxine valera'
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 average number for a final episode featuring maxine valera? ### Input: CREATE TABLE table_54217 (
    "Character" text,
    "Position" text,
    "Actor" text,
    "First Episode" text,
    "Final Episode" text,
    "Duration" text,
    "Final Episode Count" real
) ### Response: SELECT AVG("Final Episode Count") FROM table_54217 WHERE "Character" = 'maxine valera'