Three years ago, you purchased woodworking equipment for your hobby activities and side-line business in cabinetry. The cost was $70,000, no salvage was expected, and the estimated capacity was 10,000 operating hours. Determine the annual depreciation and book value using the unit-of-production method if the usage has been 3,750, 2,950, and 5,250 hours per year. The depreciation in year 1 is $ . The book value in year 1 is $ . The depreciation in year 2 is $ . The book value in year 2 is $ . The depreciation in year 3 is $ . The book value in year 3 is $