Summary statistics for pspp2012_60 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        npi1 |          0
        npi2 |          0
   paircount | 74,795,384      193.22    724.1224         11     438940
   benecount | 74,795,384       42.06    103.9879         11     193524
samedaycount | 74,795,384    14.55449    126.7672          0     243495
-------------+---------------------------------------------------------
        year | 74,795,384        2012           0       2012       2012
        days | 74,795,384          60           0         60         60
     begdate | 74,795,384       18993           0      18993      18993
     enddate | 74,795,384       19418           0      19418      19418

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