In 2020, a Company paid $ 1,250,000 for a machine that produces headphones with an estimated life of 4 years, 200,000 units and an estimated residual value of 50,000. On the first year it produced 80,000 units. On the 2^nd it produced 70,000 units. On the 3^rd it produced 30,000 units and on the 4^th it produced 20,000 units. Calculate the amortization for each year, using the units of production method.