Summary statistics for violatn dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |     51,900    27.71299    16.20661          1         56
     st_case |     51,900    277813.9    162010.4      10001     560130
      veh_no |     51,900    1.480713    1.489953          1         58
    mviolatn |     51,900    6.416609    20.67771          0         99

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