How many years as tallest building was Independence Hall?
CREATE TABLE table_71241 (
    "Name" text,
    "Street address" text,
    "Years as tallest" text,
    "Height ft (m)" text,
    "Floors" text,
    "Architect" text
)
SELECT "Years as tallest" FROM table_71241 WHERE "Name" = 'independence hall'
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: How many years as tallest building was Independence Hall? ### Input: CREATE TABLE table_71241 (
    "Name" text,
    "Street address" text,
    "Years as tallest" text,
    "Height ft (m)" text,
    "Floors" text,
    "Architect" text
) ### Response: SELECT "Years as tallest" FROM table_71241 WHERE "Name" = 'independence hall'