Frequencies for first 10,000 rows of leftatri variable in nhamcsed2013 dataset :

 Left after |
     triage |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,894       98.94       98.94
        Yes |        106        1.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016