Frequencies for first 10,000 rows of audio variable in namcs2013 dataset :

 Audiometry |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,896       98.96       98.96
        Yes |        104        1.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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