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

 Birth date |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
Not imputed |      9,992       99.92       99.92
    Imputed |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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