Summary statistics for ther2016q2 dataset :

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

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    466,661    1.36e+08    1.15e+08   4.17e+07   1.23e+09
      caseid |    466,661    1.21e+07    668911.3    4174614   1.25e+07
dsg_drug_seq |    466,661    6.342163    18.12964          1        682
    start_dt |    444,635    1.43e+07     9118572       1115   9.01e+07
start_dt_num |    444,635    19647.76    4643.884    -346793    2576462
-------------+---------------------------------------------------------
      end_dt |    200,370    1.53e+07     8551163       1952   2.02e+07
  end_dt_num |    200,370    20013.91    961.7847      -4665      23084
         dur |        872    8.268922    11.79823          1        120
     dur_cod |          0

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