5y 4 3 7y 6 July 8, 2019 16 32 64 128 5y 4 7y 3 6y 2 4) 6 - 5y 3y - 2 5) 3 - 7y 5y - 3 4 + (7y - 3)/5 (3y + 5)/4 - (3y)/2
