SELECT name, AVG(T1.stars) FROM Rating AS T1 JOIN Reviewer AS T2 ON T1.rID = T2.rID GROUP BY T2.name ORDER BY AVG(T1.stars) DESC
What is the average number of stars that each reviewer awards for a movie Show bar chart, and rank Y in descending order.
CREATE TABLE Rating (
    rID int,
    mID int,
    stars int,
    ratingDate date
)

CREATE TABLE Movie (
    mID int,
    title text,
    year int,
    director text
)

CREATE TABLE Reviewer (
    rID int,
    name text
)