Frequencies for first 10,000 rows of uop_other variable in natlterr2005 dataset :

      Other |
  Obstetric |
 Procedures |
          U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         20        0.20        0.20
          2 |      4,452       44.52       44.72
          9 |      1,783       17.83       62.55
          . |      3,745       37.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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