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)
CREATE TABLE artist (Artist_ID INT, Name TEXT, Country TEXT, Year_Join INT, Age INT)

What is the proportion of the number of countries in the artist table?
SELECT Country, COUNT(Country) FROM artist GROUP BY Country
SELECT "Country", COUNT("Country") FROM "artist" GROUP BY "Country"