NEW YORK ( TheStreet) -- Nonfarm payrolls increased by a less-than-expected 115,000 in April, but with upward revisions for February and March the net was a gain close to the 175,000 consensus.The labor force shrunk by 522,000 bringing the unemployment rate down to 8.1%. This forced the labor-force participation rate down to just 63.6% from 63.8% in March. This type of release questions the time-stamping of "The Great Recession." When the National Bureau of Economic Research marked the beginning of "The Great Recession" in December 2007, the unemployment rate was just 5.0%. The NBER waited until Dec. 1, 2008 to make this recession call. Follow TheStreet on Twitter and become a fan on Facebook. When the NBER called the end of the recession in June 2009, the unemployment rate was 9.5%. The NBER waited until Sept. 20, 2010 to make the call that the recession is over. So the U.S. came out of recession with a 9.5% unemployment rate after entering recession with a rate at 5.0%. This has always made no sense to me.