Average five-year depreciation: 40%Average five-year depreciation: 39.5%Average five-year depreciation: 39.4%Average five-year depreciation: 38.1%Average five-year depreciation: 37.2%Average five-year depreciation: 36.5%Average five-year depreciation: 35.9%Average five-year depreciation: 32%Average five-year depreciation: 31.5%Average five-year depreciation: 30%