Summary statistics for pspp2010_30 dataset :

by Jean Roth , jroth@nber.org , 12 Feb 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        npi1 |          0
        npi2 |          0
   paircount | 52,236,906    152.4201    492.3289         11     289475
   benecount | 52,236,906    41.92265    94.47888         11      59492
samedaycount | 52,236,906    18.41238    130.0411          0     154781
-------------+---------------------------------------------------------
        year | 52,236,906        2010           0       2010       2010
        days | 52,236,906          30           0         30         30
     begdate | 52,236,906       18263           0      18263      18263
     enddate | 52,236,906       19024           0      19024      19024

by Jean Roth , jroth@nber.org , 12 Feb 2018