Frequencies for first 10,000 rows of dfpc_imp variable in natlterr2011 dataset :

Day of Date |
      First |
   Prenatal |
       Care |
  Imputed R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        633        6.33        6.33
          . |      9,367       93.67      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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