Frequencies for first 10,000 rows of uop_other variable in natl2005 dataset :

      Other |
  Obstetric |
 Procedures |
          U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,478       14.78       14.78
          2 |      8,414       84.14       98.92
          9 |        108        1.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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