Frequencies for first 10,000 rows of ufagecomb variable in natl2005 dataset :

   Father's |
   Combined |
    Age U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         14 |          1        0.01        0.01
         15 |          5        0.05        0.06
         16 |         15        0.15        0.21
         17 |         35        0.35        0.56
         18 |         72        0.72        1.28
         19 |        177        1.77        3.05
         20 |        214        2.14        5.19
         21 |        309        3.09        8.28
         22 |        426        4.26       12.54
         23 |        425        4.25       16.79
         24 |        450        4.50       21.29
         25 |        488        4.88       26.17
         26 |        495        4.95       31.12
         27 |        490        4.90       36.02
         28 |        469        4.69       40.71
         29 |        494        4.94       45.65
         30 |        456        4.56       50.21
         31 |        405        4.05       54.26
         32 |        419        4.19       58.45
         33 |        392        3.92       62.37
         34 |        337        3.37       65.74
         35 |        341        3.41       69.15
         36 |        294        2.94       72.09
         37 |        241        2.41       74.50
         38 |        210        2.10       76.60
         39 |        193        1.93       78.53
         40 |        163        1.63       80.16
         41 |        143        1.43       81.59
         42 |        123        1.23       82.82
         43 |        115        1.15       83.97
         44 |        101        1.01       84.98
         45 |         69        0.69       85.67
         46 |         64        0.64       86.31
         47 |         36        0.36       86.67
         48 |         32        0.32       86.99
         49 |         42        0.42       87.41
         50 |         22        0.22       87.63
         51 |         23        0.23       87.86
         52 |          7        0.07       87.93
         53 |         13        0.13       88.06
         54 |         10        0.10       88.16
         55 |          6        0.06       88.22
         56 |          8        0.08       88.30
         57 |          2        0.02       88.32
         58 |          5        0.05       88.37
         59 |          5        0.05       88.42
         60 |          2        0.02       88.44
         61 |          1        0.01       88.45
         62 |          2        0.02       88.47
         63 |          1        0.01       88.48
         64 |          1        0.01       88.49
         65 |          2        0.02       88.51
         67 |          1        0.01       88.52
         70 |          1        0.01       88.53
         73 |          1        0.01       88.54
         88 |          1        0.01       88.55
         99 |      1,145       11.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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