How many different results were there for the number of votes fro Obama in the county where he got 27.8% of the votes?
CREATE TABLE table_20350118_1 (
    obama_number VARCHAR,
    obama_percentage VARCHAR
)
SELECT COUNT(obama_number) FROM table_20350118_1 WHERE obama_percentage = "27.8%"
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 different results were there for the number of votes fro Obama in the county where he got 27.8% of the votes? ### Input: CREATE TABLE table_20350118_1 (
    obama_number VARCHAR,
    obama_percentage VARCHAR
) ### Response: SELECT COUNT(obama_number) FROM table_20350118_1 WHERE obama_percentage = "27.8%"