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

  MANNER OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,857       48.57       48.57
          1 |        765        7.65       56.22
          2 |      1,636       16.36       72.58
          4 |      2,362       23.62       96.20
          5 |        190        1.90       98.10
          6 |        151        1.51       99.61
          9 |         39        0.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016