Frequencies for first 10,000 rows of uca_cleftlp variable in natlterr2011 dataset :

      Cleft |
 Lip/Palate |
        RFP |
766=f_uca_c |
 leftlp U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          2 |      7,642       76.42       76.43
          9 |      2,357       23.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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