Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_25 (round VARCHAR, event VARCHAR)
### Question:
Which Round has an Event of 200 miles of norisring?
### Answer:
SELECT COUNT(round) FROM table_name_25 WHERE event = "200 miles of norisring"