Frequencies for first 10,000 rows of ager22 variable in mortterr2007 dataset :

 Infant Age |
  Recode 22 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         11        0.11        0.11
          2 |         23        0.23        0.34
          3 |         13        0.13        0.47
          4 |         11        0.11        0.58
          5 |          2        0.02        0.60
          6 |          8        0.08        0.68
          7 |          2        0.02        0.70
          8 |          2        0.02        0.72
          9 |         16        0.16        0.88
         10 |          5        0.05        0.93
         11 |          2        0.02        0.95
         12 |         15        0.15        1.10
         13 |         11        0.11        1.21
         14 |          3        0.03        1.24
         15 |          3        0.03        1.27
         16 |          1        0.01        1.28
         17 |          3        0.03        1.31
         18 |          2        0.02        1.33
         20 |          1        0.01        1.34
         21 |          1        0.01        1.35
         22 |          2        0.02        1.37
          . |      9,863       98.63      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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