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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,358       53.58       53.58
          1 |        338        3.38       56.96
          2 |        300        3.00       59.96
          3 |        362        3.62       63.58
          4 |        376        3.76       67.34
          5 |        358        3.58       70.92
          6 |        339        3.39       74.31
          7 |        389        3.89       78.20
          8 |        324        3.24       81.44
          9 |        355        3.55       84.99
         10 |        346        3.46       88.45
         11 |        365        3.65       92.10
         12 |        314        3.14       95.24
         99 |        415        4.15       99.39
          . |         61        0.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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