Summary statistics for pspp2013_180 dataset :

by Jean Roth , jroth@nber.org , 11 Feb 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        npi1 |          0
        npi2 |          0
   paircount |135,071,996    314.1477     1552.33         11    1632082
   benecount |135,071,996    43.92342    115.8163         11     106436
samedaycount |135,071,996    10.78282    128.8288          0     328516
-------------+---------------------------------------------------------
        year |135,071,996        2013           0       2013       2013
        days |135,071,996         180           0        180        180
     begdate |135,071,996       19359           0      19359      19359
     enddate |135,071,996       19905           0      19905      19905

by Jean Roth , jroth@nber.org , 11 Feb 2018