What was the release date for Production Number 8181?
CREATE TABLE table_62990 (
    "Title" text,
    "Series" text,
    "Director" text,
    "Production Num." text,
    "Release date" text
)
SELECT "Release date" FROM table_62990 WHERE "Production Num." = '8181'
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 release date for Production Number 8181? ### Input: CREATE TABLE table_62990 (
    "Title" text,
    "Series" text,
    "Director" text,
    "Production Num." text,
    "Release date" text
) ### Response: SELECT "Release date" FROM table_62990 WHERE "Production Num." = '8181'