Frequencies for first 10,000 rows of racerfl variable in nhamcsed2014 dataset :

      RACER |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
Not imputed |      7,264       72.64       72.64
    Imputed |      2,736       27.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017