Summary statistics for psps1997 dataset :

by Jean Roth , jroth@nber.org , 12 Apr 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
       hcpcs |          0
        mod1 |          0
    speccode |          0
     carrier |          0
  carriernum |  9,660,217    5278.919    7247.245        510      31140
-------------+---------------------------------------------------------
    locality |          0
     typesrv |          0
    placesrv |          0
        mod2 |          0
      region |          0
-------------+---------------------------------------------------------
        freq |  9,660,217    301.4556    18901.35          1   2.02e+07
        mtus |  9,660,217    368.8619    17557.99          0   1.79e+07
   mtus_anes |  9,660,217    368.8619    17557.99          0   1.79e+07
      mtuind |          0
    sbmtchrg |  9,660,217    12127.18    170511.3          0   5.04e+07
-------------+---------------------------------------------------------
    alowchrg |  9,660,217     5881.28    101996.8          0   3.31e+07
      densrv |  9,660,217    39.75812    2306.463          0    3635007
      denamt |  9,660,217    1290.073    18964.48          0    9296530
     asgnsrv |  9,660,217    293.7164     18835.3         -2   2.02e+07
    paymtamt |  9,660,217    4508.831    76218.22          0   2.62e+07
-------------+---------------------------------------------------------
      ascind |          0
    errorind |          0

by Jean Roth , jroth@nber.org , 12 Apr 2017