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

   Breech 1 |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        586        5.86        5.86
          2 |      9,408       94.08       99.94
          9 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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