Frequencies for first 10,000 rows of age variable in scrace19ages dataset :

        Age |      Freq.     Percent        Cum.
------------+-----------------------------------
    0 years |        472        4.72        4.72
  1-4 years |        612        6.12       10.84
  5-9 years |        650        6.50       17.34
10-14 years |        614        6.14       23.48
15-19 years |        627        6.27       29.75
20-24 years |        642        6.42       36.17
25-29 years |        630        6.30       42.47
30-34 years |        649        6.49       48.96
35-39 years |        630        6.30       55.26
40-44 years |        624        6.24       61.50
45-49 years |        569        5.69       67.19
50-54 years |        514        5.14       72.33
55-59 years |        498        4.98       77.31
60-64 years |        473        4.73       82.04
65-69 years |        430        4.30       86.34
70-74 years |        399        3.99       90.33
75-79 years |        368        3.68       94.01
80-84 years |        304        3.04       97.05
  85+ years |        295        2.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 2 Jan 2018