A machine can be purchased for $140,000 and used for five years, yielding the following income. This income computation includes annual depreciation expense of $28,000. Year 1 Year 2 Year 3 Year 4 Year 5 Income $9,500 $23,500 $64,000 $35,500 $94,000 Compute the machines payback period. (Round payback period answer to 2 decimal places.)