Frequencies for first 10,000 rows of last_mo variable in vehicle dataset :

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,496       54.96       54.96
          1 |        329        3.29       58.25
          2 |        313        3.13       61.38
          3 |        349        3.49       64.87
          4 |        328        3.28       68.15
          5 |        331        3.31       71.46
          6 |        331        3.31       74.77
          7 |        368        3.68       78.45
          8 |        313        3.13       81.58
          9 |        359        3.59       85.17
         10 |        380        3.80       88.97
         11 |        313        3.13       92.10
         12 |        338        3.38       95.48
         99 |        411        4.11       99.59
          . |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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