Frequencies for first 10,000 rows of mage_impflg variable in natl2014 dataset :

   Mother's |
Age Imputed |
  Blank Age |
not imputed |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016