On 1 January 1997, a company which prepares annual accounts to 31 December paid £10,000 to acquire a tangible fixed asset with an expected useful life of 4 years and no residual value. The asset was to be depreciated by the straight-line method. On 1 January 1999 the remaining useful life of the asset was revised to 8 years and the residual value was revised to £2,000.

Required:

Calculate the amount of depreciation which should be charged in each of the ten years to 31 December 2006 (in accordance with FRS15).