Frequencies for first 10,000 rows of uld_excbl variable in natl2005 dataset :

      Other |
  Excessive |
 Bleeding U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        189        1.89        1.89
          2 |      9,692       96.92       98.81
          9 |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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