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

      FIRST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,297       52.97       52.97
          1 |        361        3.61       56.58
          2 |        303        3.03       59.61
          3 |        372        3.72       63.33
          4 |        373        3.73       67.06
          5 |        337        3.37       70.43
          6 |        363        3.63       74.06
          7 |        372        3.72       77.78
          8 |        363        3.63       81.41
          9 |        319        3.19       84.60
         10 |        367        3.67       88.27
         11 |        315        3.15       91.42
         12 |        310        3.10       94.52
         99 |        486        4.86       99.38
          . |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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