Frequencies for first 10,000 rows of precare5 variable in natlterr2015 dataset :

      Month |
   Prenatal |
 Care Began |
   Recode 1 |
 1st to 3rd |
      month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,830       58.30       58.30
          2 |      1,802       18.02       76.32
          3 |        790        7.90       84.22
          4 |        126        1.26       85.48
          5 |        374        3.74       89.22
          . |      1,078       10.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016