A/RES/51/3 Page 3 8. Decides also that the apportionment for the period from 1 July to 30 November 1996 in the amount of 5,840,000 dollars gross (5,494,500 dollars net) will be made at a later date following the review of the performance report of the Observer Mission for the period from 1 July 1995 to 30 June 1996; 9. Decides further to apportion among Member States the amount of 8,176,000 dollars gross (7,692,300 dollars net) for the period from 1 December 1996 to 30 June 1997 at the rate of 1,168,000 dollars gross (1,098,900 dollars net) per month, subject to the decision of the Security Council to extend the mandate of the Observer Mission beyond 30 November 1996, 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 and 50/224 of 11 April 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 years 1996 and 1997, as set out in its resolution 49/19 B of 23 December 1994 and its decision 50/471 A of 23 December 1995; 10. Decides 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 9 above, their respective share in the Tax Equalization Fund of the estimated staff assessment income of 69,100 dollars per month approved for the Observer Mission for the period from 1 December 1996 to 30 June 1997; 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 established by the General Assembly in its resolutions 43/230 of 21 December 1988, 44/192 A of 21 December 1989 and 45/258 of 3 May 1991; 12. Decides to keep the item entitled "Financing of the United Nations Observer Mission in Liberia" under review during the fifty-first session. 38th plenary meeting 17 October 1996