Frequencies for first 10,000 rows of othimage variable in nhamcsed2007 dataset :

      other |
    imaging |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,876       98.76       98.76
        yes |        124        1.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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