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

      Other |
  excessive |
   bleeding |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        173        1.73        1.73
          2 |      9,620       96.20       97.93
          9 |        207        2.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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