Summary statistics for ther2008q3 dataset :

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

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
   primaryid |    163058     5851040    32170.85    5700584    5929912
dsg_drug_seq |    163058    1.01e+09    122633.7   1.01e+09   1.01e+09
    start_dt |    150248    2.01e+07    37164.43   1.91e+07   2.01e+07
start_dt_num |    150248    16906.45    1375.328     -18494      17867
      end_dt |     88403    2.01e+07    39301.81   1.96e+07   3.00e+07
-------------+--------------------------------------------------------
  end_dt_num |     88403    17323.19    1437.383       1369     379213
         dur |     31416    159.3795     1575.65          0      89280
     dur_cod |         0

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