Summary statistics for violatn dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |        795          43           0         43         43
     st_case |        795    430175.4    99.21013     430001     430343
      veh_no |        795    1.218868    .5310474          1          6
    mviolatn |        795    16.52453     19.7701          0         69

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