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

  Number of |
   Previous |
  Cesareans |
    00 None |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,762       87.62       87.62
          1 |        787        7.87       95.49
          2 |        230        2.30       97.79
          3 |         56        0.56       98.35
          4 |         11        0.11       98.46
          5 |          2        0.02       98.48
          6 |          2        0.02       98.50
          8 |          1        0.01       98.51
         99 |        149        1.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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