CREATE TABLE table_22894 ("No." FLOAT, "#" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB, "U.S. viewers  ( million ) " CLOB)

How many u.s. viewers (million) have the number 16?
SELECT "U.S. viewers (million)" FROM table_22894 WHERE "#" = '16'
SELECT "U.S. viewers (million)" FROM "table_22894" WHERE "#" = '16'