Linton Company purchased a delivery truck for $34,000 on January 1, 2014. The truck has an expected salvage value of $2,000, and is expected to be driven 100,000 miles over its estimated useful life of 8 years. Actual miles driven were 15,000 in 2014 and 12,000 in 2015. Calculate depreciation expense per mile under units-of-activity method. (Round answer to 2 decimal places, e. g. 0.50.)