We essentially take a fairly optimistic approach to this in the sense that we assume that the country will meet all of the HIPC critical points in terms of its performance. If a county doesn't meet that key condition or that key criterion, then it doesn't get the debt relief and so our numbers will change. I should also note that the numbers fluctuate as some countries complete their HIPC process and the debt is written off. For example, last year Iraq completed its HIPC process, so we had a large debt forgiveness last year, but we don't have anything for Iraq this year.
On May 5th, 2009. See this statement in context.