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

  Induction |
 of Labor Y |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      7,493       74.93       74.93
          U |         73        0.73       75.66
          Y |      2,434       24.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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