Cumulative Output Loss

"...Macroeconomic conditions, as well as the projections of potential output, have changed somewhat since I undertook that calculation earlier this year, so I decided to update the calculation. I present the estimated cumulative loss from 2008Q1-2010Q3, as well as the cumulative loss from 2010Q4-2011Q4..."

at http://www.econbrowser.com/archives/2011/01/cumulative_outp.html