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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      6,251       62.51       62.51
          1 |        497        4.97       67.48
          2 |      1,284       12.84       80.32
          4 |      1,786       17.86       98.18
          5 |        117        1.17       99.35
          6 |         63        0.63       99.98
          9 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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