What was the # for the episode 'the birthday present'?
CREATE TABLE table_168 (
    "#" real,
    "Episode" text,
    "Air Date" text,
    "Timeslot (EST)" text,
    "Rating" text,
    "Share" text,
    "18\u201349 Rating" text,
    "Viewers (millions)" text,
    "Rank" text
)
SELECT MAX("#") FROM table_168 WHERE "Episode" = 'The Birthday Present'
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 was the # for the episode 'the birthday present'? ### Input: CREATE TABLE table_168 (
    "#" real,
    "Episode" text,
    "Air Date" text,
    "Timeslot (EST)" text,
    "Rating" text,
    "Share" text,
    "18\u201349 Rating" text,
    "Viewers (millions)" text,
    "Rank" text
) ### Response: SELECT MAX("#") FROM table_168 WHERE "Episode" = 'The Birthday Present'