Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |        577    430169.1    95.77136     430001     430333
      veh_no |        577    1.019064    .7509141          0          4
      per_no |        577    1.025997    .2451263          1          5
          p1 |        577    4.538995    8.721518          0         46
          p2 |        577    4.720971    8.684085          0         46
-------------+---------------------------------------------------------
          p3 |        577    4.242634    8.441386          0         38
          p4 |        577    4.315425    8.435477          0         34
          p5 |        577    4.343154    8.370755          0         37
          p6 |        577    4.466205    8.424253          0         40
          p7 |        577    4.445407    8.478172          0         47
-------------+---------------------------------------------------------
          p8 |        577    4.615251    8.636625          0         44
          p9 |        577    4.415945     8.47076          0         41
         p10 |        577    4.459272    8.610928          0         34

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