Summary statistics for pspp2011_180 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        npi1 |          0
        npi2 |          0
   paircount |129,968,445     329.159    1529.725         11    1088906
   benecount |129,968,445    45.09997    119.2438         11     194794
samedaycount |129,968,445    11.08939    115.8207          0     183944
-------------+---------------------------------------------------------
        year |129,968,445        2011           0       2011       2011
        days |129,968,445         180           0        180        180
     begdate |129,968,445       18628           0      18628      18628
     enddate |129,968,445       19175           0      19175      19175

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