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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,331       53.31       53.31
          1 |        354        3.54       56.85
          2 |        300        3.00       59.85
          3 |        308        3.08       62.93
          4 |        342        3.42       66.35
          5 |        326        3.26       69.61
          6 |        335        3.35       72.96
          7 |        328        3.28       76.24
          8 |        396        3.96       80.20
          9 |        343        3.43       83.63
         10 |        343        3.43       87.06
         11 |        324        3.24       90.30
         12 |        311        3.11       93.41
         99 |        599        5.99       99.40
          . |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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