Which Score-Final has a Rank-Final of 2, and a Year smaller than 2008?
CREATE TABLE table_63391 (
    "Year" real,
    "Competition Description" text,
    "Location" text,
    "Apparatus" text,
    "Rank-Final" real,
    "Score-Final" real
)
SELECT SUM("Score-Final") FROM table_63391 WHERE "Rank-Final" = '2' AND "Year" < '2008'
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: Which Score-Final has a Rank-Final of 2, and a Year smaller than 2008? ### Input: CREATE TABLE table_63391 (
    "Year" real,
    "Competition Description" text,
    "Location" text,
    "Apparatus" text,
    "Rank-Final" real,
    "Score-Final" real
) ### Response: SELECT SUM("Score-Final") FROM table_63391 WHERE "Rank-Final" = '2' AND "Year" < '2008'