By the fact that the purchase of new assets have high efficiency and therefore should be allocated acquisition price depreciation in the first year of the period of use is higher than after the interval.
By the fact that assets bought new. It has high efficiency. So, it should allocate the cost of assets is the depreciation period in the early years of its use over the period.
The main fact assets purchased new. Surely the effective use of high. So it should be allocated cost of assets depreciation period is in in the early years of using higher moments after.