Summary statistics for ther2006q3 dataset :

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

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    103137     5082772    22031.78    4963115    5160163
dsg_drug_seq |    103137    1.01e+09    84786.43   1.01e+09   1.01e+09
    start_dt |     94140    2.00e+07    36713.51   1.91e+07   2.01e+07
start_dt_num |     94140    16279.06    1355.173     -18221      17162
      end_dt |     58105    2.01e+07    22877.81   1.95e+07   2.21e+07
-------------+--------------------------------------------------------
  end_dt_num |     58105    16626.25    836.4326      -4383      89845
         dur |     22885    1803.544    9220.762          0      99360
     dur_cod |         0

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