Summary statistics for miper dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     st_case |     68,884    273084.3    160029.1      10001     560150
      veh_no |     68,884    1.217017    .7914406          0         24
      per_no |     68,884     1.02359    .3782378          1         25
        year |     68,884        1986           0       1986       1986
          p1 |     68,884    5.835767    9.231257          0         65
-------------+---------------------------------------------------------
          p2 |     68,884    5.804643    9.200801          0         65
          p3 |     68,884    5.793189    9.194609          0         70
          p4 |     68,884    5.786917    9.174363          0         66
          p5 |     68,884      5.7957    9.187551          0         65
          p6 |     68,884    5.797239    9.205908          0         65
-------------+---------------------------------------------------------
          p7 |     68,884    5.764227    9.168819          0         65
          p8 |     68,884    5.755081    9.142299          0         65
          p9 |     68,884     5.78519    9.168994          0         65
         p10 |     68,884    5.793203    9.229057          0         65

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