On September 16, 2018, Donald Dunn sold for $80,000 property with an adjusted basis of $20,000. The buyer paid $20,000 down with the remaining $60,000 to be paid in four equal annual installments of $15,000 beginning in September 2019 with interest at 12 percent. How much income does Donald report in 2018 and the following four years? Ignore interest.