Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |        946    430270.9    155.9287     430002     430538
      veh_no |        946    .9915433    .7126464          0          4
      per_no |        946    1.019027    .1710766          1          4
        year |        946        1999           0       1999       1999
          p1 |        946    4.705074    8.774585          0         45
-------------+---------------------------------------------------------
          p2 |        946     4.46723    8.588628          0         44
          p3 |        946    4.535941      8.5408          0         40
          p4 |        946    4.750529    8.794607          0         40
          p5 |        946    4.549683    8.606394          0         40
          p6 |        946    4.643763    8.981754          0         57
-------------+---------------------------------------------------------
          p7 |        946    4.691332    8.861299          0         42
          p8 |        946    4.509514    8.649826          0         40
          p9 |        946    4.625793    8.672619          0         44
         p10 |        946    4.671247    8.784833          0         40

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