Frequencies for first 10,000 rows of monthdth variable in mortterr2007 dataset :

   Month of |
      Death |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,491       24.91       24.91
          2 |      2,158       21.58       46.49
          3 |      2,394       23.94       70.43
          4 |      2,248       22.48       92.91
          5 |        709        7.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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