I don't have an estimate.
On December 6th, 2010. See this statement in context.
On December 6th, 2010. See this statement in context.
December 6th, 2010 / 4:45 p.m.
Co-director of the G20 Research Group and Director of the G8 Research Group, University of Toronto
I don't have an estimate.
See context to find out what was said next.