Frequencies for first 10,000 rows of ta_1_cl variable in accident dataset :

 TA-1 Class |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        980        9.80        9.80
          2 |      2,854       28.54       38.34
          3 |      1,101       11.01       49.35
          4 |      2,207       22.07       71.42
          5 |        228        2.28       73.70
          6 |        269        2.69       76.39
          7 |        755        7.55       83.94
          8 |      1,359       13.59       97.53
          9 |        247        2.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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