Frequencies for first 10,000 rows of nodisp variable in nhamcsopd2002 dataset :

  no answer |
         to |
disposition |
       item |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,876       98.76       98.76
          1 |        124        1.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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