Frequencies for first 10,000 rows of month variable in person dataset :

   Accident |
 Date-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,051       10.51       10.51
          2 |        997        9.97       20.48
          3 |      1,112       11.12       31.60
          4 |      1,039       10.39       41.99
          5 |      1,300       13.00       54.99
          6 |      1,285       12.85       67.84
          7 |        790        7.90       75.74
          8 |        515        5.15       80.89
          9 |        513        5.13       86.02
         10 |        450        4.50       90.52
         11 |        529        5.29       95.81
         12 |        419        4.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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