A survey records the number of books read by $28$ students during the summer: $2,7,5,9,12,6,4,10,8,3,15,11,13,14,5,7,8,6,12,9,10,4,3,2,1,13,14,15$. Construct a frequency distribution using $5$ classes. Include class midpoints, relative frequencies, and cumulative frequencies.