Units of Production method

An entity bought a plane for 60000 euro and and it had a shipping cost of 2500. The firm expected to use it for 3 years and to sell plane for 2 500 euro at the end of it service life. During these 3 years of use, the company estimated to fly 100 000 miles in total on it. In the first year company estimates to fly 30 000 miles, second year 50 000, third year 20 000.

What is sum of the depreciation expenses of the first two years?