What was the rural % where the source estimate was census and the urban % was larger than 57?
CREATE TABLE table_9066 (
    "Year (January)" real,
    "Population ('000)" real,
    "Rural, %" real,
    "Urban, %" real,
    "Source" text
)
SELECT SUM("Rural, %") FROM table_9066 WHERE "Source" = 'estimate' AND "Urban, %" > '57'
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 rural % where the source estimate was census and the urban % was larger than 57? ### Input: CREATE TABLE table_9066 (
    "Year (January)" real,
    "Population ('000)" real,
    "Rural, %" real,
    "Urban, %" real,
    "Source" text
) ### Response: SELECT SUM("Rural, %") FROM table_9066 WHERE "Source" = 'estimate' AND "Urban, %" > '57'