Frequencies for first 10,000 rows of dfpc_imp variable in natl2011 dataset :

Day of Date |
      First |
   Prenatal |
       Care |
  Imputed R |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015