Frequencies for first 10,000 rows of monthdth variable in mort2006 dataset :

   Month of |
      Death |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,027       40.27       40.27
          2 |      3,759       37.59       77.86
          3 |      2,214       22.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015