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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,343       53.43       53.43
          1 |        332        3.32       56.75
          2 |        311        3.11       59.86
          3 |        353        3.53       63.39
          4 |        354        3.54       66.93
          5 |        355        3.55       70.48
          6 |        359        3.59       74.07
          7 |        351        3.51       77.58
          8 |        360        3.60       81.18
          9 |        317        3.17       84.35
         10 |        379        3.79       88.14
         11 |        359        3.59       91.73
         12 |        324        3.24       94.97
         99 |        441        4.41       99.38
          . |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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