Frequencies for first 10,000 rows of mri variable in namcs2012 dataset :

        mri |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,874       98.74       98.74
        Yes |        126        1.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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