Summary statistics for ther2006q1 dataset :

by Jean Roth , jroth@nber.org , 18 Dec 2015

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    129173     4921736    29413.56    4793437    5015804
dsg_drug_seq |    129173    1.01e+09    111785.8   1.01e+09   1.01e+09
    start_dt |    118155    2.00e+07    125130.8      51101   5.01e+07
start_dt_num |    118154    15900.92     4057.54     -21914    1112511
      end_dt |     79210    2.00e+07    40527.45   1.96e+07   3.01e+07
-------------+--------------------------------------------------------
  end_dt_num |     79210    16331.75    1484.023        992     381743
         dur |     33283    1124.402    6822.771          0      99360
     dur_cod |         0

by Jean Roth , jroth@nber.org , 18 Dec 2015