how many countries have at least one athlete who ranks in the top 25 ?
CREATE TABLE table_203_211 (
    id number,
    "pos." number,
    "time" text,
    "athlete" text,
    "country" text,
    "venue" text,
    "date" text
)
SELECT COUNT(DISTINCT "country") FROM table_203_211
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 countries have at least one athlete who ranks in the top 25 ? ### Input: CREATE TABLE table_203_211 (
    id number,
    "pos." number,
    "time" text,
    "athlete" text,
    "country" text,
    "venue" text,
    "date" text
) ### Response: SELECT COUNT(DISTINCT "country") FROM table_203_211