How many Viewers have a Rank smaller than 2?
CREATE TABLE table_63853 (
    "Rank" real,
    "Series" text,
    "Episode title" text,
    "Viewers" real,
    "Date" text
)
SELECT SUM("Viewers") FROM table_63853 WHERE "Rank" < '2'
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 Viewers have a Rank smaller than 2? ### Input: CREATE TABLE table_63853 (
    "Rank" real,
    "Series" text,
    "Episode title" text,
    "Viewers" real,
    "Date" text
) ### Response: SELECT SUM("Viewers") FROM table_63853 WHERE "Rank" < '2'