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

       LAST |
ACCIDENT-MO |
        NTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,421       54.21       54.21
          1 |        345        3.45       57.66
          2 |        310        3.10       60.76
          3 |        362        3.62       64.38
          4 |        338        3.38       67.76
          5 |        346        3.46       71.22
          6 |        346        3.46       74.68
          7 |        369        3.69       78.37
          8 |        370        3.70       82.07
          9 |        335        3.35       85.42
         10 |        347        3.47       88.89
         11 |        297        2.97       91.86
         12 |        363        3.63       95.49
         99 |        399        3.99       99.48
          . |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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