Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |     50,091    277394.6    161050.6      10001     560139
      veh_no |     50,091    1.256274    .8208116          0         15
      per_no |     50,091    1.012098    .1544359          1          8
          p1 |     50,091    4.446128    8.664137          0         94
          p2 |     50,091    4.440558     8.67377          0         94
-------------+---------------------------------------------------------
          p3 |     50,091    4.425605    8.642616          0         94
          p4 |     50,091    4.502446    8.691147          0         94
          p5 |     50,091    4.482222     8.67007          0         94
          p6 |     50,091    4.497375    8.660773          0         94
          p7 |     50,091    4.460642    8.668497          0         94
-------------+---------------------------------------------------------
          p8 |     50,091    4.477391    8.672789          0         94
          p9 |     50,091    4.445988    8.646812          0         94
         p10 |     50,091    4.414765    8.633688          0         94

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