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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,324       53.24       53.24
          1 |        343        3.43       56.67
          2 |        340        3.40       60.07
          3 |        353        3.53       63.60
          4 |        351        3.51       67.11
          5 |        371        3.71       70.82
          6 |        370        3.70       74.52
          7 |        367        3.67       78.19
          8 |        366        3.66       81.85
          9 |        357        3.57       85.42
         10 |        332        3.32       88.74
         11 |        342        3.42       92.16
         12 |        324        3.24       95.40
         99 |        408        4.08       99.48
          . |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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