Frequencies for first 10,000 rows of rf_cesarn variable in natl2017 dataset :

  Number of |
   Previous |
  Cesareans |
    00 None |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,794       87.94       87.94
          1 |        756        7.56       95.50
          2 |        258        2.58       98.08
          3 |         68        0.68       98.76
          4 |         13        0.13       98.89
          5 |          6        0.06       98.95
          7 |          1        0.01       98.96
         99 |        104        1.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 19 Sep 2018