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

      First |
Accident,et |
    c-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,065       30.65       30.65
          1 |        502        5.02       35.67
          2 |        492        4.92       40.59
          3 |        550        5.50       46.09
          4 |        479        4.79       50.88
          5 |        542        5.42       56.30
          6 |        533        5.33       61.63
          7 |        481        4.81       66.44
          8 |        537        5.37       71.81
          9 |        500        5.00       76.81
         10 |        553        5.53       82.34
         11 |        515        5.15       87.49
         12 |        522        5.22       92.71
         99 |        729        7.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016