Frequencies for first 10,000 rows of uop_induc variable in natlterr2015 dataset :

  Induction |
 of Labor 1 |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        616        6.16        6.16
          2 |      8,204       82.04       88.20
          9 |      1,180       11.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016