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

   Delivery |
     Method |
     Recode |
 Combined 1 |
    Vaginal |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,767       77.67       77.67
          2 |      2,230       22.30       99.97
          9 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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