Summary statistics for factor dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     45,852    27.90223    16.12175          1         56
     st_case |     45,852    279619.2    161184.2      10001     560139
      veh_no |     45,852    1.439523    .7687561          1         15
     mfactor |     45,852    5.028505    21.54463          0         99

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