Summary statistics for indi2014q2 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    421,500    1.05e+08    5.89e+07   3.31e+07   1.00e+09
      caseid |    421,500     9997428    448568.6    3308501   1.06e+07
indi_drug_~q |    421,500    3.766641    6.115126          1        304
     indi_pt |          0

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