Summary statistics for factor dataset :

by Jean Roth , jroth@nber.org , 22 Oct 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     45,008    27.88018    16.29396          1         56
     st_case |     45,008    279461.8      162912      10001     560131
      veh_no |     45,008    1.442877    1.002398          1         40
     mfactor |     45,008    6.456563    24.24572          0         99

by Jean Roth , jroth@nber.org , 22 Oct 2016