Summary statistics for violatn dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     47,948    27.88853    16.22274          1         56
     st_case |     47,948    279525.5    162195.6      10001     560075
      veh_no |     47,948    1.499875    2.372557          1         90
    mviolatn |     47,948    6.365458    20.27637          0         99

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