Frequencies for first 10,000 rows of otherob variable in natl2002 dataset :

      Other |
  Obstetric |
 Procedures |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,768       17.68       17.68
          2 |      7,926       79.26       96.94
          9 |        306        3.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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