Frequencies for first 10,000 rows of otherob variable in linkco1991us_num dataset :

      Other |
  Obstetric |
 Procedures |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        251        2.51        2.51
          2 |      9,538       95.38       97.89
          9 |        211        2.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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