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

   Accident |
 Date-Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,099       10.99       10.99
          2 |      1,029       10.29       21.28
          3 |      1,150       11.50       32.78
          4 |      1,299       12.99       45.77
          5 |      1,474       14.74       60.51
          6 |      1,057       10.57       71.08
          7 |        590        5.90       76.98
          8 |        495        4.95       81.93
          9 |        412        4.12       86.05
         10 |        530        5.30       91.35
         11 |        442        4.42       95.77
         12 |        423        4.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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