Six Star Corporation purchased a piece of equipment at the beginning of 2012. The equipment cost $120,000. Its estimated service life is 7 years and has an expected salvage value of $6,000. The sum-of-the-years-digits method is used. The depreciation schedule has a $20,357 annual depreciation expense for a certain year.

Required: Determine what year the depreciation expense of $20,357 is on the depreciation schedule. Round all answers to the nearest whole dollar.