CREATE TABLE table_39193 ("Round" TEXT, "Date" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" FLOAT)

Which Attendance has an Opponent of crawley town?
SELECT "Attendance" FROM table_39193 WHERE "Opponent" = 'crawley town'
SELECT "Attendance" FROM "table_39193" WHERE "Opponent" = 'crawley town'