Summary statistics for product dataset :

by Jean Roth , jroth@nber.org , 26 Oct 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      applno |     34,585    82175.93    59131.23          4     761046
   productno |     34,585    1.950354    2.004013          1         53
        form |          0
      dosage |          0
productmkt~s |     34,585    1.948735    1.040862          1          4
-------------+---------------------------------------------------------
   tecodestr |          0
      tecode |     15,274    16.00962    45.24977          1        999
referenced~g |     34,585    .1127078    .3233825          0          2
    drugname |          0
activeingred |          0

by Jean Roth , jroth@nber.org , 26 Oct 2017