Decides to appropriate to the Special Account for the United Nations Observer Mission in Angola the amount of 7,441,540 dollars gross (7, 083,840 dollars net) for the liquidation of the Observer Mission for the period from 1 July 1999 to 30 June 2000, inclusive of the amount of 369,153 dollars for the support account for peacekeeping operations and the amount of 72,387 dollars for the United Nations Logistics Base at Brindisi, Italy, to be apportioned, as an ad hoc arrangement, among Member States in accordance with the composition of groups set out in paragraphs 3 and 4 of its resolution 43/232 of 1 March 1989, as adjusted by the General Assembly in its resolutions 44/192 B of 21 December 1989, 45/269 of 27 August 1991, 46/198 A of 20 December 1991, 47/218 A of 23 December 1992, 49/249 A of 20 July 1995, 49/249 B of 14 September 1995, 50/224 of 11 April 1996, 51/218 A to C of 18 December 1996 and 52/230 of 31 March 1998 and its decisions 48/472 A of 23 December 1993 and 50/451 B of 23 December 1995, and taking into account the scale of assessments for the years 1999 and 2000, as set out in its resolution 52/215 A of 22 December 1997;