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

  Manner of |
  Collision |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,919       49.19       49.19
          1 |        796        7.96       57.15
          2 |      2,029       20.29       77.44
          3 |          3        0.03       77.47
          4 |      2,000       20.00       97.47
          5 |        168        1.68       99.15
          6 |         74        0.74       99.89
          9 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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