CREATE TABLE journalist (journalist_ID INT, Name TEXT, Nationality TEXT, Age TEXT, Years_working INT)
CREATE TABLE event (Event_ID INT, Date TEXT, Venue TEXT, Name TEXT, Event_Attendance INT)
CREATE TABLE news_report (journalist_ID INT, Event_ID INT, Work_Type TEXT)

Show me a bar chart for what are the nationalities and total ages of journalists?, and display from low to high by the total number.
SELECT Nationality, SUM(Age) FROM journalist GROUP BY Nationality ORDER BY SUM(Age)
SELECT "Nationality", SUM("Age") FROM "journalist" GROUP BY "Nationality" ORDER BY SUM("Age") NULLS FIRST