Frequencies for first 10,000 rows of llbmon variable in natl1991 dataset :

   Month of |
  Last Live |
      Birth |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        556        5.56        5.56
          2 |        513        5.13       10.69
          3 |        463        4.63       15.32
          4 |        409        4.09       19.41
          5 |        406        4.06       23.47
          6 |        404        4.04       27.51
          7 |        496        4.96       32.47
          8 |        487        4.87       37.34
          9 |        492        4.92       42.26
         10 |        464        4.64       46.90
         11 |        464        4.64       51.54
         12 |        515        5.15       56.69
         77 |      4,306       43.06       99.75
         99 |         25        0.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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