Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |        943    430259.4    150.5448     430001     430521
      veh_no |        943    1.010604    .7313818          0          4
      per_no |        943     1.04666    .3090067          1          5
        year |        943        2000           0       2000       2000
          p1 |        943    4.494168    8.139685          0         37
-------------+---------------------------------------------------------
          p2 |        943    4.512195    8.124013          0         40
          p3 |        943    4.918346    8.582725          0         41
          p4 |        943    4.530223     8.26273          0         39
          p5 |        943    4.683987    8.298174          0         37
          p6 |        943     4.80912    8.513112          0         38
-------------+---------------------------------------------------------
          p7 |        943    4.663839    8.388803          0         37
          p8 |        943    4.778367    8.507189          0         43
          p9 |        943    4.604454    8.221681          0         37
         p10 |        943    4.706257    8.454175          0         49

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