Frequencies for first 10,000 rows of drug_rec_act variable in reac2017q2 dataset :

                           drug_rec_act |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      9,990       99.90       99.90
                    Acute kidney injury |          1        0.01       99.91
                   Bone marrow toxicity |          1        0.01       99.92
                            Cholestasis |          1        0.01       99.93
Drug reaction with eosinophilia and s.. |          1        0.01       99.94
                               Dystonia |          1        0.01       99.95
                  Hepatocellular injury |          1        0.01       99.96
                            Neutropenia |          1        0.01       99.97
                            Proteinuria |          1        0.01       99.98
                                    Tic |          1        0.01       99.99
             Toxic epidermal necrolysis |          1        0.01      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Feb 2018