Frequencies for first 10,000 rows of prescr10 variable in nhamcsed2014 dataset :

        Prescription status code for |
                      medication #10 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                   Prescription drug |        133        1.33        1.33
                Nonprescription drug |          6        0.06        1.39
                        Undetermined |          3        0.03        1.42
Prescription or Nonprescription drug |         47        0.47        1.89
                                   . |      9,811       98.11      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017