Analysis at took    18.64 s 	(   18.34 s of cpu), 489980 entries, done on Thu Apr 21 16:14:27 2011
 Analysis at took    21.16 s 	(   18.30 s of cpu), 489980 entries, done on Fri Apr 22 08:55:38 2011
 Analysis at took    18.16 s 	(   18.16 s of cpu), 489980 entries, done on Fri Apr 22 09:08:36 2011
 Analysis at took    31.82 s 	(   28.80 s of cpu), 489980 entries, done on Fri May 27 11:07:30 2011