Summary statistics for factor dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     48,985    27.61304    16.27776          1         56
     st_case |     48,985    276821.1    162715.6      10001     560130
      veh_no |     48,985    1.503685    1.527656          1         58
     mfactor |     48,985      6.3064     24.0122          0         99

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