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

  MANNOR OF |
  COLLISION |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,686       46.86       46.86
          1 |        592        5.92       52.78
          2 |      1,814       18.14       70.92
          4 |      2,483       24.83       95.75
          5 |        153        1.53       97.28
          6 |        132        1.32       98.60
          9 |        140        1.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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