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_24 (year_set VARCHAR, long_course_short_course VARCHAR, time VARCHAR)
### Question:
What year did a short course have a time of 7:51.80?
### Answer:
SELECT COUNT(year_set) FROM table_name_24 WHERE long_course_short_course = "short course" AND time = "7:51.80"