Summary statistics for nadacc20170329 dataset :

by Jean Roth , jroth@nber.org , 10 Feb 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
ndcdescrip~n |          0
         ndc |          0
oldnadacpe~t |          5    211.1822    388.6257     .14848   903.3403
newnadacpe~t |          5    231.9783    427.2797     .15343   992.9517
classifica~g |          0
-------------+---------------------------------------------------------
percentcha~e |          5       4.416    9.083266     -11.01       9.92
percentcha~r |          0
primaryrea~n |          0
   startdate |          5       20900           0      20900      20900
     enddate |          5       20907           0      20907      20907
-------------+---------------------------------------------------------
        year |          5        2017           0       2017       2017
       month |          5           3           0          3          3
         day |          5          29           0         29         29

by Jean Roth , jroth@nber.org , 10 Feb 2018