Frequencies for first 10,000 rows of ufagecomb variable in natl2009 dataset :

   Father's |
   Combined |
    Age U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         14 |          2        0.02        0.02
         15 |          2        0.02        0.04
         16 |         21        0.21        0.25
         17 |         45        0.45        0.70
         18 |        126        1.26        1.96
         19 |        202        2.02        3.98
         20 |        257        2.57        6.55
         21 |        281        2.81        9.36
         22 |        347        3.47       12.83
         23 |        383        3.83       16.66
         24 |        386        3.86       20.52
         25 |        464        4.64       25.16
         26 |        473        4.73       29.89
         27 |        512        5.12       35.01
         28 |        501        5.01       40.02
         29 |        521        5.21       45.23
         30 |        488        4.88       50.11
         31 |        445        4.45       54.56
         32 |        397        3.97       58.53
         33 |        363        3.63       62.16
         34 |        339        3.39       65.55
         35 |        275        2.75       68.30
         36 |        257        2.57       70.87
         37 |        216        2.16       73.03
         38 |        224        2.24       75.27
         39 |        162        1.62       76.89
         40 |        128        1.28       78.17
         41 |         99        0.99       79.16
         42 |         70        0.70       79.86
         43 |         50        0.50       80.36
         44 |         48        0.48       80.84
         45 |         42        0.42       81.26
         46 |         41        0.41       81.67
         47 |         24        0.24       81.91
         48 |         21        0.21       82.12
         49 |         16        0.16       82.28
         50 |         13        0.13       82.41
         51 |          9        0.09       82.50
         52 |         13        0.13       82.63
         53 |          2        0.02       82.65
         54 |          3        0.03       82.68
         55 |          3        0.03       82.71
         56 |          8        0.08       82.79
         57 |          8        0.08       82.87
         58 |          2        0.02       82.89
         59 |          2        0.02       82.91
         60 |          2        0.02       82.93
         61 |          1        0.01       82.94
         62 |          1        0.01       82.95
         65 |          1        0.01       82.96
         67 |          1        0.01       82.97
         69 |          1        0.01       82.98
         99 |      1,702       17.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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