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

  manner of |
  collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,558       45.58       45.58
          1 |      1,220       12.20       57.78
          2 |      1,300       13.00       70.78
          6 |      2,280       22.80       93.58
          7 |        339        3.39       96.97
          8 |        182        1.82       98.79
          9 |         25        0.25       99.04
         11 |         23        0.23       99.27
         98 |          4        0.04       99.31
         99 |         69        0.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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