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

      First |
Accident,et |
    c-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,959       39.59       39.59
          1 |        411        4.11       43.70
          2 |        390        3.90       47.60
          3 |        460        4.60       52.20
          4 |        449        4.49       56.69
          5 |        427        4.27       60.96
          6 |        456        4.56       65.52
          7 |        477        4.77       70.29
          8 |        451        4.51       74.80
          9 |        429        4.29       79.09
         10 |        483        4.83       83.92
         11 |        441        4.41       88.33
         12 |        421        4.21       92.54
         99 |        746        7.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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