Summary statistics for gaz2016zcta5distance5miles dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
        zip1 |          0
        zip2 |          0
 mi_to_zcta5 |     98,508    3.414793    1.116678   .0492289   4.999962

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