Summary statistics for factor dataset :

by Jean Roth , jroth@nber.org , 18 Apr 2016

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     44,004     27.9138    16.25486          1         56
     st_case |     44,004    279735.7    162512.6      10001     560121
      veh_no |     44,004     1.40969    .7761546          1         26
     mfactor |     44,004    3.350877    17.68689          0         99

by Jean Roth , jroth@nber.org , 18 Apr 2016