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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,238       52.38       52.38
          1 |        327        3.27       55.65
          2 |        308        3.08       58.73
          3 |        366        3.66       62.39
          4 |        355        3.55       65.94
          5 |        338        3.38       69.32
          6 |        363        3.63       72.95
          7 |        354        3.54       76.49
          8 |        377        3.77       80.26
          9 |        369        3.69       83.95
         10 |        347        3.47       87.42
         11 |        332        3.32       90.74
         12 |        326        3.26       94.00
         99 |        553        5.53       99.53
          . |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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