Frequencies for first 10,000 rows of otherob variable in natlterr2000 dataset :

      Other |
  Obstetric |
 Procedures |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         30        0.30        0.30
          2 |      9,964       99.64       99.94
          9 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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