Analysis at took 18.76 s ( 18.74 s of cpu), 501794 entries, done on Thu Apr 21 19:38:02 2011 Analysis at took 21.09 s ( 19.03 s of cpu), 501794 entries, done on Fri Apr 22 08:48:41 2011 Analysis at took 32.27 s ( 29.62 s of cpu), 501794 entries, done on Fri May 27 11:00:46 2011