Violeta Pitular operates a business center in Cabanatuan City. On April 1, 2004, she bought office equipment at a cost of P68,000 with a salvage value of P8,000. As of December 31, 2005, the said office equipment has a book value of P48,000.

Assuming that Violeta Pitular used the straight-line method, the depreciation expense recognized for the year 2004 is