Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |        531      430156    86.95383     430001     430301
      veh_no |        531    .9548023    .7306178          0          5
      per_no |        531     1.06403     .397689          1          6
          p1 |        531    5.453861    9.364286          0         44
          p2 |        531    5.553672    9.414884          0         36
-------------+---------------------------------------------------------
          p3 |        531    5.367232    9.084446          0         33
          p4 |        531    5.502825    9.327859          0         44
          p5 |        531    5.274953    9.133378          0         33
          p6 |        531    5.293785    9.169903          0         33
          p7 |        531    5.258004    9.054516          0         33
-------------+---------------------------------------------------------
          p8 |        531    5.551789    9.301991          0         38
          p9 |        531    5.629002    9.347173          0         33
         p10 |        531    5.546139     9.44993          0         64

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