Frequencies for first 10,000 rows of hearing variable in nhamcsopd1992 dataset :

    Hearing |
       test |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,839       98.39       98.39
          1 |        161        1.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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