Frequencies for first 10,000 rows of excebld variable in natl1995 dataset :

      Other |
  excessive |
   bleeding |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         17        0.17        0.17
          2 |      9,952       99.52       99.69
          9 |         31        0.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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