Summary statistics for ther2006q2 dataset :

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

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    119352     5004062    25164.45    4871816    5117603
dsg_drug_seq |    119352    1.01e+09    99289.36   1.01e+09   1.01e+09
    start_dt |    110807    2.00e+07     37108.7   1.93e+07   2.01e+07
start_dt_num |    110807    16017.86    1366.467     -10957      17136
      end_dt |     73134    2.00e+07    21265.04   1.96e+07   2.01e+07
-------------+--------------------------------------------------------
  end_dt_num |     73134    16413.08    765.6989        821      17155
         dur |     27417    1415.762    7523.889          0      99360
     dur_cod |         0

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