Summary statistics for sf12000countydistancemiles dataset :

by Jean Roth , jroth@nber.org , 29 Mar 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     county1 |          0
mi_to_county | 10,358,742    950.5987      652.59   .9607159   6006.687
     county2 |          0

by Jean Roth , jroth@nber.org , 29 Mar 2016