A/RES/71/311 Financing of the activities arising from Security Council resolution 1863 (2009) Noting with appreciation that voluntary contributions have been made to the United Nations trust fund established to support the African Union Mission in Somalia, 1. Takes note of the status of contributions to the United Nations Support Office in Somalia3 as at 30 April 2017, including the contributions outstanding in the amount of 36.3 million United States dollars, representing some 1 per cent of the total assessed contributions, notes with concern that only 98 Member States have paid their assessed contributions in full, and urges all other Member States, in particular those in arrears, to ensure payment of their outstanding assessed contributions; 2. Endorses the conclusions and recommendations contained in the report of the Advisory Committee on Administrative and Budgetary Questions, 4 subject to the provisions of the present resolution, and requests the Secretary-General to ensure their full implementation; 3. Recalls paragraph 36 of the report of the Advisory Committee, and requests the Secretary-General to include in his report to the General Assembly at its seventy-second session specific information concerning efficiency gains achieved through the implementation of Umoja; Budget performance report for the period from 1 July 2015 to 30 June 2016 4. Takes note of the report of the Secretary-General on the budget performance of the United Nations Support Office for the African Union Mission in Somalia for the period from 1 July 2015 to 30 June 2016;1 Budget estimates for the period from 1 July 2017 to 30 June 2018 5. Decides to appropriate to the Special Account for the United Nations Support Office in Somalia the amount of 622,193,500 dollars for the period from 1 July 2017 to 30 June 2018, inclusive of 582,000,000 dollars for the maintenance of the Support Office, 29,433,300 dollars for the support account for peacekeeping operations, 7,359,600 dollars for the United Nations Logistics Base at Brindisi, Italy, and 3,400,600 dollars for the Regional Service Centre in Entebbe, Uganda; Financing of the appropriation 6. Decides to apportion among Member States the amount of 103,698,917 dollars for the period from 1 July to 31 August 2017, in accordance with the levels updated in its resolution 70/246 of 23 December 2015, taking into account the scale of assessments for 2017, as set out in its resolution 70/245 of 23 December 2015; 7. Also 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 6 above, their respective share in the Tax Equalization Fund of 1,412,367 dollars, comprising the estimated staff assessment income of 837,734 dollars approved for the Support Office, the prorated share of 427,933 dollars of the estimated staff assessment income approved for the support account, the prorated share of 94,200 dollars of the estimated staff assessment income approved for the United Nations Logistics Base and the prorated share of 52,500 dollars of the estimated staff assessment income approved for the Regional Service Centre; 8. Further decides to apportion among Member States the amount of 518,494,583 dollars for the period from 1 September 2017 to 30 June 2018 at a monthly rate of 51,849,458 dollars, in accordance with the levels updated in its resolution 70/246, taking into account the scale of assessments for 2017 and 2018, as set out in its resolution 70/245, subject to a decision of the Security Council to extend the mandate of the Support Office; 2/3