Frequencies for first 10,000 rows of ufagecomb variable in natlterr2008 dataset :

   Father's |
   Combined |
    Age U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
         13 |          1        0.01        0.01
         15 |          3        0.03        0.04
         16 |         32        0.32        0.36
         17 |         76        0.76        1.12
         18 |        126        1.26        2.38
         19 |        190        1.90        4.28
         20 |        267        2.67        6.95
         21 |        371        3.71       10.66
         22 |        389        3.89       14.55
         23 |        374        3.74       18.29
         24 |        428        4.28       22.57
         25 |        408        4.08       26.65
         26 |        394        3.94       30.59
         27 |        485        4.85       35.44
         28 |        425        4.25       39.69
         29 |        408        4.08       43.77
         30 |        412        4.12       47.89
         31 |        400        4.00       51.89
         32 |        369        3.69       55.58
         33 |        331        3.31       58.89
         34 |        325        3.25       62.14
         35 |        302        3.02       65.16
         36 |        312        3.12       68.28
         37 |        272        2.72       71.00
         38 |        226        2.26       73.26
         39 |        191        1.91       75.17
         40 |        178        1.78       76.95
         41 |        122        1.22       78.17
         42 |        116        1.16       79.33
         43 |         84        0.84       80.17
         44 |         89        0.89       81.06
         45 |         66        0.66       81.72
         46 |         46        0.46       82.18
         47 |         60        0.60       82.78
         48 |         30        0.30       83.08
         49 |         27        0.27       83.35
         50 |         26        0.26       83.61
         51 |         14        0.14       83.75
         52 |         11        0.11       83.86
         53 |          6        0.06       83.92
         54 |         13        0.13       84.05
         55 |         10        0.10       84.15
         56 |         11        0.11       84.26
         57 |          6        0.06       84.32
         58 |          5        0.05       84.37
         59 |          5        0.05       84.42
         60 |          6        0.06       84.48
         61 |          3        0.03       84.51
         62 |          3        0.03       84.54
         63 |          3        0.03       84.57
         64 |          2        0.02       84.59
         65 |          1        0.01       84.60
         66 |          2        0.02       84.62
         67 |          3        0.03       84.65
         69 |          3        0.03       84.68
         99 |      1,532       15.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 May 2016