Frequencies for first 10,000 rows of prescr14 variable in namcs2014 dataset :

          Prescription status code for |
                        medication #14 |      Freq.     Percent        Cum.
---------------------------------------+-----------------------------------
                     Prescription drug |        205        2.05        2.05
                  Nonprescription drug |         21        0.21        2.26
                          Undetermined |         13        0.13        2.39
Both Prescription and Over-The-Counter |        109        1.09        3.48
                                     . |      9,652       96.52      100.00
---------------------------------------+-----------------------------------
                                 Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017