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

Plot the total number by grouped by nationality as a bar graph, rank bar from high to low order.
SELECT Nationality, COUNT(*) FROM journalist GROUP BY Nationality ORDER BY Nationality DESC
SELECT "Nationality", COUNT(*) FROM "journalist" GROUP BY "Nationality" ORDER BY "Nationality" DESC