Summary statistics for pspp2010_90 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        npi1 |          0
        npi2 |          0
   paircount | 86,116,496     241.144    951.8537         11     604277
   benecount | 86,116,496    43.37093    104.8239         11      69930
samedaycount | 86,116,496    13.33445    116.8178          0     182155
-------------+---------------------------------------------------------
        year | 86,116,496        2010           0       2010       2010
        days | 86,116,496          90           0         90         90
     begdate | 86,116,496       18263           0      18263      18263
     enddate | 86,116,496       19084           0      19084      19084

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