CREATE TABLE party_host (Party_ID INT, Host_ID INT, Is_Main_in_Charge BOOLEAN)
CREATE TABLE host (Host_ID INT, Name TEXT, Nationality TEXT, Age TEXT)
CREATE TABLE party (Party_ID INT, Party_Theme TEXT, Location TEXT, First_year TEXT, Last_year TEXT, Number_of_hosts INT)

A bar chart about how many hosts does each nationality have? List the nationality and the count, and display by the Y in ascending.
SELECT Nationality, COUNT(*) FROM host GROUP BY Nationality ORDER BY COUNT(*)
SELECT "Nationality", COUNT(*) FROM "host" GROUP BY "Nationality" ORDER BY COUNT(*) NULLS FIRST