What's the average number of floors that were built in 2004, and have a roof (m) of 106?
CREATE TABLE table_71603 (
    "Rank" real,
    "City" text,
    "Roof ( m )" real,
    "Spire (m)" text,
    "Floors" real,
    "Built" real
)
SELECT AVG("Floors") FROM table_71603 WHERE "Built" = '2004' AND "Roof ( m )" = '106'
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's the average number of floors that were built in 2004, and have a roof (m) of 106? ### Input: CREATE TABLE table_71603 (
    "Rank" real,
    "City" text,
    "Roof ( m )" real,
    "Spire (m)" text,
    "Floors" real,
    "Built" real
) ### Response: SELECT AVG("Floors") FROM table_71603 WHERE "Built" = '2004' AND "Roof ( m )" = '106'