CREATE TABLE table_203_592 (id DECIMAL, "institution" TEXT, "location" TEXT, "athletic nickname" TEXT, "undergraduate enrollment" DECIMAL, "graduate enrollment" DECIMAL, "total enrollment" DECIMAL, "2013 endowment\ ( and us rank ) " TEXT, "academic staff" DECIMAL, "motto" TEXT)

what is the difference in enrollment numbers -lrb- total graduate and undergraduate -rrb- between the highest attend and lowest attended ivy league school ?
SELECT MAX("total enrollment") - MIN("total enrollment") FROM table_203_592
SELECT MAX("total enrollment") - MIN("total enrollment") FROM "table_203_592"