Summary statistics for indi2016q4 dataset :

by Jean Roth , jroth@nber.org , 18 Sep 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    758,457    1.38e+08    9.93e+07   4.08e+07   1.29e+09
      caseid |    758,457    1.27e+07    646843.8    4083807   1.31e+07
indi_drug_~q |    758,457    5.552473     13.0378          1        627
     indi_pt |          0

by Jean Roth , jroth@nber.org , 18 Sep 2017