We don't have a precise number on the demographic composition of the downsizing currently under way. What we do have, however, is a projection of these contributors, and according to the most recent report, we are projecting about 300,000 contributors in 2016-17. That's the number we have in the actuarial report. As such, the liabilities are both related to these contributors and the pensioners, the disabled, the survivors, and their children who are receiving benefits.
On June 18th, 2013. See this statement in context.