Frequencies for first 10,000 rows of speedrel variable in vehicle dataset :

   speeding |
    related |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,327       73.27       73.27
          2 |         26        0.26       73.53
          3 |        683        6.83       80.36
          4 |      1,036       10.36       90.72
          5 |        131        1.31       92.03
          8 |         69        0.69       92.72
          9 |        728        7.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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