Summary statistics for indi2018q4 dataset :

by Jean Roth , jroth@nber.org , 7 Mar 2019

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |  1,064,664    1.75e+08    1.62e+08   3.67e+07   1.56e+09
      caseid |  1,064,664    1.52e+07     1037810    3670355   1.59e+07
indi_drug_~q |  1,064,664    6.333577     10.2933          1        310
     indi_pt |          0

by Jean Roth , jroth@nber.org , 7 Mar 2019