Decides to appropriate to the Special Account for the United Nations Observer Mission in Liberia the amount of 20,447,100 dollars gross (18,918,300 dollars net) for the maintenance of the Observer Mission for the period from 1 July 1997 to 30 June 1998, inclusive of the amount of 758,700 dollars for the support account for peacekeeping operations, to be assessed on Member States at a monthly rate of 1,703,925 dollars gross (1,576,525 dollars net) in accordance with the composition of groups set out in paragraphs 3 and 4 of General Assembly resolution 43/232 of 1 March 1989, as adjusted by the 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 and 51/218 A and B of 18 December 1996 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 year 1997, as set out in its resolution 49/19 B of 23 December 1994 and its decision 50/471 A of 23 December 1995, and for the year 1998, subject to the decision of the Security Council to extend the mandate of the Observer Mission beyond 30 June 1997;