Frequencies for first 10,000 rows of nodisp variable in nhamcsed2015 dataset :

          No answer to disposition item |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
One or more answers to the disposition  |      9,956       99.56       99.56
      No answer to the disposition item |         44        0.44      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017