The contributions shall be expressed as a percentage of each member's reference salary and shall be apportioned between the member and the participating Organizations as follows: 

   a) for members who joined the Fund on or before 31 December 2011: member: 11.33%;
       Organization: 22.67%; total: 34%;

   b) for members who joined the Fund on or after 1 January 2012: member: 12.64%;
       Organization: 18.96%; total: 31.60%;.

The Council may review the contributions to the Fund, and decide on special contributions designed to ensure its long-term stability, either from the participating Organizations or from the members, or both.