Frequencies for first 10,000 rows of prescr8 variable in nhamcsed2014 dataset :

        Prescription status code for |
                       medication #8 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                   Prescription drug |        252        2.52        2.52
                Nonprescription drug |         10        0.10        2.62
                        Undetermined |          2        0.02        2.64
Prescription or Nonprescription drug |        106        1.06        3.70
                                   . |      9,630       96.30      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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