Frequencies for first 10,000 rows of prescr5 variable in nhamcsopd2011 dataset :

Prescription status code for Medication |
                                     #5 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                      Prescription drug |      1,487       14.87       14.87
                   Nonprescription drug |         71        0.71       15.58
                           Undetermined |         28        0.28       15.86
Both prescription and OTC (over the cou |        488        4.88       20.74
                                      . |      7,926       79.26      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016