A/RES/51/236 Page 3 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 1998,4 subject to the decision of the Security Council to extend the mandate of the Observer Mission beyond 31 July 1997; 8. Decides also that, in accordance with the provisions of its resolution 973 (X) of 15 December 1955, there shall be set off against the apportionment among Member States, as provided for in paragraph 7 above, their respective share in the Tax Equalization Fund of the estimated staff assessment income of 998,400 dollars approved for the Observer Mission for the period from 1 July 1997 to 30 June 1998; 9. Decides further that, for Member States that have fulfilled their financial obligations to the Observer Mission, there shall be set off against the apportionment, as provided for in paragraph 7 above, their respective share in the unencumbered balance of 1,056,950 dollars gross (831,900 dollars net) in respect of the period ending 30 June 1996; 10. Decides that, for Member States that have not fulfilled their financial obligations to the Observer Mission, their share of the unencumbered balance of 1,056,950 dollars gross (831,900 dollars net) for the period ending 30 June 1996 shall be set off against their outstanding obligations; 11. Invites voluntary contributions to the Observer Mission in cash and in the form of services and supplies acceptable to the Secretary-General, to be administered, as appropriate, in accordance with the procedure and practices established by the General Assembly; 12. Decides to include in the provisional agenda of its fifty-second session the item entitled "Financing of the United Nations Observer Mission in Georgia". 101st plenary meeting 13 June 1997 4 To be adopted by the General Assembly.