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

  Attempted |
Forceps RFP |
617=f_md_at |
     tfor R |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      2,536       25.36       25.36
          N |      4,232       42.32       67.68
          U |      3,050       30.50       98.18
          Y |        182        1.82      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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