Frequencies for first 10,000 rows of egd variable in namcs2014 dataset :

      Upper |
gastrointes |
      tinal |
  endoscopy |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,943       99.43       99.43
        Yes |         57        0.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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