Frequencies for first 10,000 rows of lfdmon variable in natl1983 dataset :

    Date of |
 Last Fetal |
    Death - |
      Month |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        137        1.37        1.37
          2 |        131        1.31        2.68
          3 |        132        1.32        4.00
          4 |         98        0.98        4.98
          5 |         89        0.89        5.87
          6 |         94        0.94        6.81
          7 |         91        0.91        7.72
          8 |         80        0.80        8.52
          9 |         84        0.84        9.36
         10 |        101        1.01       10.37
         11 |         86        0.86       11.23
         12 |        121        1.21       12.44
         77 |      8,229       82.29       94.73
         99 |        527        5.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016