CREATE TABLE artist (Artist_ID INT, Name TEXT, Country TEXT, Year_Join INT, Age INT)
CREATE TABLE exhibition (Exhibition_ID INT, Year INT, Theme TEXT, Artist_ID INT, Ticket_Price FLOAT)
CREATE TABLE exhibition_record (Exhibition_ID INT, Date TEXT, Attendance INT)

Give me a bar chart about the number of countries in the artist table, and could you display by the bars in descending?
SELECT Country, COUNT(Country) FROM artist GROUP BY Country ORDER BY Country DESC
SELECT "Country", COUNT("Country") FROM "artist" GROUP BY "Country" ORDER BY "Country" DESC NULLS LAST