Summary statistics for gaz2016zcta5distancemiles dataset :

by Jean Roth , jroth@nber.org , 15 Jun 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        zip1 |          0
        zip2 |          0
 mi_to_zcta5 | 1098491592     1016.93    716.3489   .0492289   9503.773

by Jean Roth , jroth@nber.org , 15 Jun 2017