Frequencies for first 10,000 rows of ufagecomb variable in natlterr2005 dataset :

   Father's |
   Combined |
    Age U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         14 |          1        0.01        0.01
         15 |          6        0.06        0.07
         16 |         17        0.17        0.24
         17 |         72        0.72        0.96
         18 |        130        1.30        2.26
         19 |        189        1.89        4.15
         20 |        260        2.60        6.75
         21 |        338        3.38       10.13
         22 |        371        3.71       13.84
         23 |        386        3.86       17.70
         24 |        444        4.44       22.14
         25 |        472        4.72       26.86
         26 |        416        4.16       31.02
         27 |        440        4.40       35.42
         28 |        430        4.30       39.72
         29 |        432        4.32       44.04
         30 |        384        3.84       47.88
         31 |        387        3.87       51.75
         32 |        387        3.87       55.62
         33 |        349        3.49       59.11
         34 |        382        3.82       62.93
         35 |        309        3.09       66.02
         36 |        269        2.69       68.71
         37 |        212        2.12       70.83
         38 |        210        2.10       72.93
         39 |        189        1.89       74.82
         40 |        169        1.69       76.51
         41 |        145        1.45       77.96
         42 |        113        1.13       79.09
         43 |        101        1.01       80.10
         44 |         82        0.82       80.92
         45 |         68        0.68       81.60
         46 |         54        0.54       82.14
         47 |         51        0.51       82.65
         48 |         30        0.30       82.95
         49 |         29        0.29       83.24
         50 |         27        0.27       83.51
         51 |         23        0.23       83.74
         52 |         17        0.17       83.91
         53 |         19        0.19       84.10
         54 |         11        0.11       84.21
         55 |          6        0.06       84.27
         56 |          5        0.05       84.32
         57 |          8        0.08       84.40
         58 |          7        0.07       84.47
         59 |          1        0.01       84.48
         60 |          3        0.03       84.51
         61 |          2        0.02       84.53
         62 |          4        0.04       84.57
         63 |          2        0.02       84.59
         64 |          1        0.01       84.60
         65 |          2        0.02       84.62
         67 |          1        0.01       84.63
         70 |          2        0.02       84.65
         99 |      1,535       15.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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