Summary statistics for indi2017q4 dataset :

by Jean Roth , jroth@nber.org , 19 Jun 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    863,690    1.50e+08    1.06e+08   3.94e+07   1.41e+09
      caseid |    863,690    1.39e+07    745777.7    3937953   1.45e+07
indi_drug_~q |    863,690    5.598689    8.934473          1        272
     indi_pt |          0

by Jean Roth , jroth@nber.org , 19 Jun 2018