Frequencies for first 10,000 rows of bdatefl variable in namcs2011 dataset :

 Birth date |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
Not imputed |      9,884       98.84       98.84
    Imputed |        116        1.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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