Summary statistics for gaz1990countydistancemiles dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     county1 |          0
mi_to_county |  9,862,740    890.2117    591.6444   1.341494   5410.827
     county2 |          0
        name |          0

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