CREATE TABLE table_203_8 (id NUMBER, "player" CLOB, "rec." NUMBER, "yards" NUMBER, "avg." NUMBER, "td's" NUMBER, "long" NUMBER)

what is the difference between the highest average and the lowest avaerage ?
SELECT MAX("avg.") - MIN("avg.") FROM table_203_8
SELECT MAX("avg.") - MIN("avg.") FROM "table_203_8"