Frequencies for first 10,000 rows of dmeth_rec variable in natl2011 dataset :

   Delivery |
     Method |
 Recode U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,159       71.59       71.59
          2 |      2,059       20.59       92.18
          9 |        782        7.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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