Frequencies for first 10,000 rows of fagecomb variable in natl2013 dataset :

   Father's |
   Combined |
        Age |
(Revised) R |      Freq.     Percent        Cum.
------------+-----------------------------------
         14 |          1        0.01        0.01
         15 |          1        0.01        0.02
         16 |          9        0.09        0.11
         17 |         23        0.23        0.34
         18 |         60        0.60        0.94
         19 |         90        0.90        1.84
         20 |        190        1.90        3.74
         21 |        318        3.18        6.92
         22 |        364        3.64       10.56
         23 |        409        4.09       14.65
         24 |        442        4.42       19.07
         25 |        504        5.04       24.11
         26 |        524        5.24       29.35
         27 |        525        5.25       34.60
         28 |        557        5.57       40.17
         29 |        581        5.81       45.98
         30 |        594        5.94       51.92
         31 |        522        5.22       57.14
         32 |        486        4.86       62.00
         33 |        476        4.76       66.76
         34 |        373        3.73       70.49
         35 |        332        3.32       73.81
         36 |        311        3.11       76.92
         37 |        264        2.64       79.56
         38 |        215        2.15       81.71
         39 |        182        1.82       83.53
         40 |        141        1.41       84.94
         41 |        150        1.50       86.44
         42 |        124        1.24       87.68
         43 |        100        1.00       88.68
         44 |         70        0.70       89.38
         45 |         68        0.68       90.06
         46 |         53        0.53       90.59
         47 |         48        0.48       91.07
         48 |         34        0.34       91.41
         49 |         26        0.26       91.67
         50 |         27        0.27       91.94
         51 |         26        0.26       92.20
         52 |         19        0.19       92.39
         53 |          9        0.09       92.48
         54 |          8        0.08       92.56
         55 |          7        0.07       92.63
         56 |          5        0.05       92.68
         57 |          3        0.03       92.71
         58 |          6        0.06       92.77
         59 |          4        0.04       92.81
         60 |          2        0.02       92.83
         61 |          1        0.01       92.84
         62 |          1        0.01       92.85
         64 |          3        0.03       92.88
         67 |          1        0.01       92.89
         70 |          2        0.02       92.91
         78 |          1        0.01       92.92
         99 |        708        7.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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