Summary statistics for indi2014q4 dataset :

by Jean Roth , jroth@nber.org , 6 Apr 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    437,230    1.09e+08    5.68e+07   3.47e+07   1.05e+09
      caseid |    437,230    1.04e+07    415719.1    3474788   1.10e+07
indi_drug_~q |    437,230    4.001308    5.856855          1        221
     indi_pt |          0

by Jean Roth , jroth@nber.org , 6 Apr 2017