Summary statistics for products dataset :

by Jean Roth , jroth@nber.org , 15 Oct 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      applno |     37,840    93008.18    69788.26          4     761104
   productno |     37,840    1.954149    1.961127          1         53
        form |          0
    strength |          0
referenced~g |     37,840    .1584567    .3717719          0          2
-------------+---------------------------------------------------------
    drugname |          0
activeingr~t |          0
references~d |          0
      tecode |          0

by Jean Roth , jroth@nber.org , 15 Oct 2018