CREATE TABLE management (department_ID INT, head_ID INT, temporary_acting TEXT)
CREATE TABLE head (head_ID INT, name TEXT, born_state TEXT, age FLOAT)
CREATE TABLE department (Department_ID INT, Name TEXT, Creation TEXT, Ranking INT, Budget_in_Billions FLOAT, Num_Employees FLOAT)

Show average of budget in different year and group by department creation time with a line chart, and I want to sort in desc by the Creation.
SELECT Creation, AVG(Budget_in_Billions) FROM department GROUP BY Creation ORDER BY Creation DESC
SELECT "Creation", AVG("Budget_in_Billions") FROM "department" GROUP BY "Creation" ORDER BY "Creation" DESC NULLS LAST