Summary statistics for nmprior dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       state |        129          43           0         43         43
     st_case |        129    430156.2    82.36058     430001     430287
      veh_no |        129           0           0          0          0
      per_no |        129    1.093023    .3172603          1          3
     mpr_act |        129    4.271318    2.259535          1         12

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