CREATE TABLE table_4384 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" CLOB)

What was the attendance of the w 28-13 game?
SELECT "Attendance" FROM table_4384 WHERE "Result" = 'w 28-13'
SELECT "Attendance" FROM "table_4384" WHERE "Result" = 'w 28-13'