Frequencies for first 10,000 rows of cf3 variable in accident dataset :

    related |
factors (3) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,985       99.85       99.85
         23 |          1        0.01       99.86
         99 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016