CREATE TABLE church (Church_ID NUMBER, Name CLOB, Organized_by CLOB, Open_Date NUMBER, Continuation_of CLOB)
CREATE TABLE people (People_ID NUMBER, Name CLOB, Country CLOB, Is_Male CLOB, Age NUMBER)
CREATE TABLE wedding (Church_ID NUMBER, Male_ID NUMBER, Female_ID NUMBER, Year NUMBER)

Show the proportion of the number of countries for all people whose age is smaller than the average.
SELECT Country, COUNT(Country) FROM people WHERE Age < (SELECT AVG(Age) FROM people) GROUP BY Country
SELECT "Country", COUNT("Country") FROM "people" WHERE "Age" < (SELECT AVG("Age") FROM "people") GROUP BY "Country"