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

   Accident |
 Fatalities |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      9,041       90.41       90.41
          2 |        757        7.57       97.98
          3 |        153        1.53       99.51
          4 |         33        0.33       99.84
          5 |          8        0.08       99.92
          6 |          5        0.05       99.97
          7 |          1        0.01       99.98
          8 |          1        0.01       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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