What is the goal average 1 for teams that lost 9 games?
CREATE TABLE table_21637 (
    "Position" real,
    "Team" text,
    "Played" real,
    "Won" real,
    "Drawn" real,
    "Lost" real,
    "Goals For" real,
    "Goals Against" real,
    "Goal Average 1" text,
    "Points 2" real
)
SELECT "Goal Average 1" FROM table_21637 WHERE "Lost" = '9'
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 goal average 1 for teams that lost 9 games? ### Input: CREATE TABLE table_21637 (
    "Position" real,
    "Team" text,
    "Played" real,
    "Won" real,
    "Drawn" real,
    "Lost" real,
    "Goals For" real,
    "Goals Against" real,
    "Goal Average 1" text,
    "Points 2" real
) ### Response: SELECT "Goal Average 1" FROM table_21637 WHERE "Lost" = '9'