SCHEMA:
CREATE TABLE gymnast (Gymnast_ID VARCHAR); CREATE TABLE people (Hometown VARCHAR, People_ID VARCHAR)
USER:
What are the hometowns of gymnasts and the corresponding number of gymnasts?

QUERY:
SELECT T2.Hometown, COUNT(*) FROM gymnast AS T1 JOIN people AS T2 ON T1.Gymnast_ID = T2.People_ID GROUP BY T2.Hometown