How many weeks have an attendance less than 26,048?
CREATE TABLE table_61657 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Game site" text,
    "Record" text,
    "Attendance" real
)
SELECT SUM("Week") FROM table_61657 WHERE "Attendance" < '26,048'
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 weeks have an attendance less than 26,048? ### Input: CREATE TABLE table_61657 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Result" text,
    "Game site" text,
    "Record" text,
    "Attendance" real
) ### Response: SELECT SUM("Week") FROM table_61657 WHERE "Attendance" < '26,048'